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 Data
sheet (595kb) |
Signal
conditioning is required where the output of a transducer needs to be
boosted or changed into a form suitable for the monitor or logging
device which will be used. These amplifiers are suitable for LVDT
transducers, strain gauge sensors and some internally amplified
transducers. Our S7 amplifiers are specifically designed to be installed close to the transducer so that the signal can be boosted as soon as possible. The S7 signal conditioning units are mounted in a die-cast aluminium housing and have a good level of environmental protection and screening from electrical noise. A very wide range of gain adjustment ensures that our amplifiers are compatible with the vast majority of LVDT and strain gauge sensors available from any manufacturer. There are several versions with different input, output and transducer compatibility. |
| S7AC dc powered LVDT transducer amplifier. |
S7AC
MOD 10+ technical manual (229kb) |
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| Compatible with | Any standard RDP
LVDT (without integral electronics) LIN & PY When fitted with two 1k Ohm bridge completion resistors ( Does not provide analogue voltage linearisation for PY) Most LVDTs from any manufacturer |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Supply voltage (single, must be floating) | 12V to 36V dc, 50mA | Output ripple | 5mV peak-to-peak typical / 10uA peak-to-peak typical | |||||||||||||||||||||||
| Supply voltage (dual) | ?V to ?8V dc, 50mA | Input impedance | ?30k Ohms | |||||||||||||||||||||||
| Transducer excitation | 1V, 5kHz (1kHz to 10kHz with component change), 25mA | Temperature coefficient (zero) | ?.005% F.S. /癈 minimum | |||||||||||||||||||||||
| Output details | ?V to ?0V (may be affected
by supply voltage) / 4-20mA (loop resistance 100 Ohms to 550 Ohms) |
Temperature coefficient (span) | ?.01% F.S. /癈 minimum | |||||||||||||||||||||||
| Amplifier gain range | 0.07 to 500 | Approximate zero adjustment range | ?V | |||||||||||||||||||||||
| Signal input range | 30mV to 4V | Operating temperature range | -10癈 to 60癈 | |||||||||||||||||||||||
| Linearity error | ?.1% F.S. | Total weight | 260g | |||||||||||||||||||||||
| Electrical output bandwidth | 0 to 500Hz | Cable gland cable size | 3.0mm to 6.5mm | |||||||||||||||||||||||
| S7TW 4-20mA loop powered LVDT transducer amplifier. |
S7TW
technical manual (186kb) |
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| Compatible with | All standard RDP
LVDT (without integral electronics) transducers except the following
which require a free of charge modification called TM0202 D5/25, ACT2000, ACT2000A, ACT2000C, ACT4000, ACT4000C, ACT15000C, ACT18500C Most LVDTs from any manufacturer |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Supply voltage | 12V to 36V dc | Output ripple | 50uApeak-to-peak (15uApeak-to-peak with filter turned on) | |||||||||||||||||||||||
| LVDT minimum input impedance | 130 Ohms | Input impedance | 100k Ohms | |||||||||||||||||||||||
| Transducer excitation | 0.5V (4mA), 5kHz | Temperature coefficient (zero) | ?.005% F.S. /癈 (typical) | |||||||||||||||||||||||
| Output details | 4-20mA (loop resistance 50 Ohms to 1.2k Ohms maximum) | Temperature coefficient (span) | ?.015% F.S. /癈 (typical) | |||||||||||||||||||||||
| Amplifier gain range | 2.5 to 333 | Approximate zero adjustment range | ?mA | |||||||||||||||||||||||
| Signal input range | 30mV to 4V | Operating temperature range | -20癈 to 85癈 maximum | |||||||||||||||||||||||
| Linearity error | ?.05% F.S. | Total weight | 550g | |||||||||||||||||||||||
| Electrical output bandwidth | 0 to 250Hz (25Hz with filter turned on) | Cable gland cable size | 3.0mm to 6.5mm | |||||||||||||||||||||||
| S7M 115/230V ac powered LVDT transducer amplifier. |
S7M
technical manual (234kb) |
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| Compatible with | Any standard RDP
LVDT (without integral electronics) LIN & PY When fitted with two 1k Ohm bridge completion resistors ( Does not provide analogue voltage linearisation for PY) Most LVDTs from any manufacturer |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Supply voltage | 230V or 115V ac, 2.5VA, 50/60Hz | Input impedance | ?00k Ohms | |||||||||||||||||||||||
| Transducer excitation | 5V, 5kHz (1kHz to 10kHz with component change), 100mA | Temperature coefficient (zero) | ?.002% F.S. /癈 typical | |||||||||||||||||||||||
| Output details | ?0V / 4-20mA (loop resistance 0 Ohms to 600 Ohms) | Temperature coefficient (span) | ?.004% F.S. /癈 (typical) | |||||||||||||||||||||||
| Amplifier gain range | 0.15 to 200 | Approximate zero adjustment range | ?0V | |||||||||||||||||||||||
| Signal input range | 20mV (minimum) to 20V | Operating temperature range | -10癈 to 50癈 | |||||||||||||||||||||||
| Linearity error | ?.1% F.S. maximum | Total weight | 1.8kg | |||||||||||||||||||||||
| Electrical output bandwidth | 0 to 500Hz | Cable gland cable size (x2) | 3.0mm to 6.0mm | |||||||||||||||||||||||
| Output ripple | 5mV peak-to-peak typical | Cable gland cable size (x1) | 5mm to 10mm | |||||||||||||||||||||||
| S7DC dc powered strain gauge transducer amplifier. |
S7DC
technical manual (194kb) |
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| Compatible with | Most full bridge strain gauge transducers | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Supply voltage (single, must be floating) | 10V to 36V dc, 30mA (plus transducer and output load) | Output ripple | 10mV / 30uA | |||||||||||||||||||||||
| Supply voltage (dual) | ?V to ?8V dc, 30mA (plus transducer and output load) | Input impedance | >10M Ohms | |||||||||||||||||||||||
| Transducer excitation | 3V to 10V , 100mA | Temperature coefficient (zero) | ?.002% F.S. /癈 (typical) | |||||||||||||||||||||||
| Output details | ?V to ?0V / 4-20mA (loop resistance 0 Ohms to 800 Ohms) (may be affected by supply voltage) | Temperature coefficient (span) | ?.003% F.S. /癈 (typical) | |||||||||||||||||||||||
| Amplifier gain range | 1 to 1250 | Approximate zero adjustment range | ?V | |||||||||||||||||||||||
| Signal input range | 4mV to 10V | Operating temperature range | -40癈 to 85癈 maximum | |||||||||||||||||||||||
| Linearity error | ?.02% F.S. | Total weight | 260g | |||||||||||||||||||||||
| Electrical output bandwidth | 0 to 5kHz (20Hz with filter turned on) | Cable gland cable size | 3.0mm to 6.5mm | |||||||||||||||||||||||
| S7MZ 115/230V ac powered strain gauge transducer amplifier. |
S7MZ
technical manual (353kb) |
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| Compatible with | Most full bridge strain gauge transducers | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Supply voltage | 230V or 115V ac, 2.5VA, 50/60Hz | Input impedance | ?G Ohms | |||||||||||||||||||||||
| Transducer excitation | 5V, 5kHz (1kHz to 10kHz with component change), 100mA | Temperature coefficient (zero) | ?.00% F.S. /癈 typical | |||||||||||||||||||||||
| Output details | ?0V / 4-20mA (loop resistance 0 Ohms to 600 Ohms) | Temperature coefficient (span) | ?.00% F.S. /癈 (typical) | |||||||||||||||||||||||
| Amplifier gain range | 5 to 7000 | Approximate zero adjustment range | ?0V | |||||||||||||||||||||||
| Signal input range | 1.5mV to 600mv | Operating temperature range | -10癈 to 50癈 | |||||||||||||||||||||||
| Linearity error | ?.1% F.S. | Total weight | 1.8kg | |||||||||||||||||||||||
| Electrical output bandwidth | 0 to 500Hz | Cable gland cable size (x2) | 3.0mm to 6.0mm | |||||||||||||||||||||||
| Output ripple | 5mV | Cable gland cable size (x1) | 5mm to 10mm | |||||||||||||||||||||||
|
Data
sheet (308kb) |
The DR7 is a
DIN rail mounting amplifier designed to install in suitable cabinets
along with other similar devices. To reduce electrical noise, system problems and the risk of accidental damage the DR7 has full isolation between supply and output. A wide supply voltage tolerance and selectable excitation ensure that the DR7 is compatible with a very wide selection of transducers and applications. |
| DR7AC dc powered LVDT transducer amplifier. |
DR7AC
technical manual (383kb) |
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| Compatible with | Any standard RDP
LVDT (without integral electronics) LIN & PY When fitted with two 1k Ohm bridge completion resistors ( Does not provide analogue voltage linearisation for PY) Most LVDTs from any manufacturer |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Supply voltage | 9V to 36V dc, 250mA | Output ripple | 5mV rms typical / 20uA rms typical | ||||||||||||||
| Transducer excitation | 1/3V (user selectable), 25mA 3/5kHz (user selectable) |
Input impedance | ?30k Ohms | ||||||||||||||
| Output details | 0 to 10V, 5mA (isolated) ?0V, 5mA (isolated) 4-20mA (loop resistance 100 Ohms to 500 Ohms) (isolated) |
Temperature coefficient (combined zero and span) | ?.01% F.S. /癈 minimum | ||||||||||||||
| Signal input range | 20mV to 4V | Operating temperature range | -10癈 to 60癈 | ||||||||||||||
| Linearity error | ?.1% F.S. | Total weight | 125g | ||||||||||||||
| Electrical output bandwidth | 0 to 250Hz | - | - | ||||||||||||||
| DR7DC dc powered strain gauge transducer amplifier. |
DR7DC
technical manual (426kb) |
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| Compatible with | Most full bridge strain gauge transducers | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Supply voltage | 9V to 36V dc, 120mA typical | Output ripple | 5mV rms typical / 20uA rms typical | ||||||||||||||
| Transducer excitation | 3 to 10V (user selectable), 100mA maximum | Input impedance | 10MOhms minimum | ||||||||||||||
| Output details | 0 to 10V, 5mA (isolated) ?0V, 5mA (isolated) 4-20mA (loop resistance 100 Ohms to 500 Ohms) (isolated) |
Temperature coefficient (combined zero and span) | ?.005% F.S. /癈 minimum | ||||||||||||||
| Signal input range | 4mV to 10V | Operating temperature range | -10癈 to 60癈 | ||||||||||||||
| Linearity error | ?.02% F.S. | Total weight | 130g | ||||||||||||||
| Electrical output bandwidth | 0 to 5k/500/20Hz(user selectable) | - | - | ||||||||||||||
|
Data
sheet (139kb) |
 |
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| Signal conditioning is
required where the output of a transducer needs to be boosted or changed
into a form suitable for the monitor or logging device which will be
used. Our digital display units have a built-in monitor device in the
form of the digital display as well as analogue output. Both E308 and E309 have high and low limits with voltage-free relay outputs. The E308 has a shunt calibration facility to enable calibration checks to be made. A very wide range of gain adjustment ensures that our amplifiers are compatible with the vast majority of LVDT and strain gauge sensors available from any manufacturer. Although they have a digital display, these units are entirely analogue and are configured using switches and potentiometers, there is no set-up software to learn. |
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| Specification |
E308
technical manual (318kb) |
E309
technical manual (310kb) |
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|---|---|---|---|
| Type | E308 | E309 | |
| Ac supply version | 240Vac/120Vac (+5/-20%), 50/60Hz 10VA | 240Vac/120Vac (+10/-20%), 50/60Hz 10VA | |
| Compatible with | Most full bridge strain
gauge transducers Most amplified transducers from any manufacturer |
Any standard RDP LVDT
(without integral electronics). Most LVDTs from any manufacturer. |
|
| Number of digits | 4 ? red LED (11mm) | 4 ? red LED (11mm) | |
| Display update rate | 2.5Hz | 2.5Hz | |
| Transducer excitation | 1.2V to 15V & -15V, 60mA | 5V, 5kHz (1kHz to 10kHz with component change), 100mA | |
| Signal input range | 5mV to 90V | 50mV to 20V | |
| Output details | ?0V / 4-20mA (loop resistance 0 Ohms to 500 Ohms) | ?0V / 4-20mA (loop resistance 0 Ohms to 500 Ohms) | |
| Electrical output bandwidth | 0 to 150Hz (3Hz with filter turned on) | 0 to 300Hz | |
| Input impedance | 2M Ohms | 100k Ohms | |
| Linearity error | ?.02% F.S. typical | ?.1% F.S. | |
| Output ripple (peak-to-peak) | 10mV typical / 30uA typical | 5mV typical / 10uA typical | |
| Temperature coefficient (zero) | ?.01% F.S. /癈 (typical) | ?.01% F.S. /癈 (typical) | |
| Temperature coefficient (span) | ?.01% F.S. /癈 (typical) | ?.01% F.S. /癈 (typical) | |
| Limit trips | Number of channels | 2 | 2 |
| Operation time | 5ms | 5ms | |
| Contact rating | 24Vdc (1A) / 120Vac (0.3A) | 24Vdc (1A) / 120Vac (0.3A) | |
| Operating temperature range | 0癈 to 50癈 | 0癈 to 55癈 | |
| Total weight | 1.3kg | 1.3kg | |
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PMHW | 139mm |
|---|---|---|
| PMHH | 67mm | |
| PMBW | 144mm | |
| PMBH | 72mm | |
| PMD | 185mm | |
| PMDC | 245mm | |
| Panel cut-out | 139mm X 67mm |
|
Data
sheet (168kb) |
 |
 |
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| Signal conditioning is
required where the output of a transducer needs to be boosted or changed
into a form suitable for the monitor or logging device which will be
used. Our digital display units have a built-in monitor device in the
form of the digital display as well as analogue output. The E725 amplifier unit additionally has a serial output and limit trips with optional relays. Features such as auto-zero and MAX, MIN and TIR store are features which are also available with most versions of this unit. A very wide range of gain adjustment ensures that our amplifiers are compatible with the vast majority of LVDT and strain gauge sensors available from any manufacturer. |
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| Supply voltage | |||
|---|---|---|---|
| Supply voltage | Operating temperature range | Total weight | |
| Ac supply version | 115/230 ( +5/-15%), 50/60Hz, 7VA | -10癈 to 45癈 | 510g |
| Dc supply version | 5V(+50%, -10%) /12/24V (+50%, -25%) dc 7W | -10癈 to 55癈 | 430g |
| Input Card Type | ||||
|---|---|---|---|---|
| Input Card Type | AC | DC1 | DC2 | DC3 |
| Compatible with | Any standard RDP LVDT
(without integral electronics). Most LVDTs from any manufacturer. |
Most full bridge strain
gauge transducers DCTH, Sensagap & MCL Most amplified transducers from any manufacturer |
Most 4-20mA transducers | D2 & LDC |
| Transducer excitation | 1.1V rms , 5kHz 30mA | 3V to 10V & ?5V, 100mA | 23V, 100mA | 6V, 100mA |
| Signal input range | 15mV to 4V | 3mV to 10V | 3mV to 10V, 4-20mA | 3mV to 10V |
| Electrical output bandwidth | 0 to 250Hz | 0 to 300Hz | 0 to 300Hz | 0 to 300Hz |
| Input impedance | 100k Ohms | 100M Ohms | 100M Ohms | 100M Ohms |
| Linearity error | ?.05% F.S. | ?.02% F.S. | ?.02% F.S. | ?.02% F.S. |
| Option card (none or one may be selected) | ||||
|---|---|---|---|---|
| Option code | Description | |||
| 2AC | Second input of type AC | Transducers must have sensitivity within 15% of each other and display the same full scale value | ||
| 2DC1 | Second input of typeDC1 | |||
| 2DC2 | Second input of type DC2 | |||
| 2DC3 | Second input of type DC3 | |||
| FM | Fast peak catcher card | |||
| R | Relay card (Mechanical) | Number of channels = 4 | Operation time = 20ms | Contact rating = 150V dc/125V ac, 30W/60VA |
| FR | Relay card (Mechanical) | Number of channels = 2 | Operation time = 5ms | Contact rating = 150V dc/125V ac, 30W/60VA |
| RS | Relay card (Solid-state) | Number of channels = 4 | Operation time = 20ms | Contact rating = 200V dc/130V ac, 200mA |
| FRS | Relay card (Solid-state) | Number of channels = 2 | Operation time = 5ms | Contact rating = 200V dc/130V ac, 200mA |
| Serial output |
|---|
| Standard = RS232 |
| Optional = RS485 |
| Analogue output (This unit has both Voltage and 4-20mA outputs) | |||||
|---|---|---|---|---|---|
| Input Card Type | F.S. (-) | 0 | F.S. (+) | Output ripple (peak-to-peak) | Approximate zero adjustment range |
| AC Standard | +10V/20mA | +5V/12mA | 0V/4mA | 5mV / 20uA (typical) | ?.5V |
| AC Special option 11 | +10V/20mA | 0v/4mA | -10V | ||
| DC Standard | +10V/20mA | 0V/4mA | -10V | 2mV / 30uA (typical) | |
| DC Special option 12 | +10V/20mA | +5V/12mA | 0v/4mA | ||
| Limit trips (standard) | |||
|---|---|---|---|
| E725 TTL output | Number of channels = 4 | Operation time = 15ms | Maximum source/sink current = 13mA |
| Other features | |||||
|---|---|---|---|---|---|
| Description | DC1, DC2, DC3 & AC | 2DC1, 2DC2, 2DC3 & 2AC | FM | R/RS | FR/FRS |
| 3 modes may be programmed each with a different gain and offset from the primary channel |
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| A, B, (A+B)/2, A-B |
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| Multi-point calibration, up to 11 calibration points to improve linearity |
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PMHW | 92mm |
|---|---|---|
| PMHH | 44mm | |
| PMBW | 96.5mm | |
| PMBH | 48.5mm | |
| PMD | 124mm | |
| PMDC | 174mm | |
| Panel cut-out | 93mm X 45mm |
| Part number structure (example, E725-230-DC1-R-0-0) |
|---|
| E725 | Supply voltage | Input Card Type | Option card (none or one may be selected) | Serial output | Special option | ||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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|
Data
sheet (564kb) |
 |
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| Signal conditioning is
required where the output of a transducer needs to be boosted or changed
into a form suitable for the monitor or logging device which will be
used. A very wide range of gain adjustment ensures that our amplifiers
are compatible with the vast majority of LVDT and strain gauge sensors
available from any manufacturer. Modular 600 signal conditioning allows the customer to select the type and quantity of input cards required for the application from a number of different types available. The system can be supplied with optional monitor/display/data logger units if required. Firstly decide the type and quantity of modules required making sure to include any future requirements. Then decide if you need a monitor or data logger. Finally choose an appropriately sized housing with a power supply and blank panels to cover any unused slots. |
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| 611 Strain gauge transducer amplifier |
611
technical manual (296kb) |
|
Compatible with | Most full bridge strain gauge transducers. Most amplified transducers from any manufacturer. |
| Number of channels | 2 | |
| Supply voltage | ?5V, 60mA (plus transducer and output load) | |
| Transducer excitation | 1V to 10V & ?5V (110mA maximum) | |
| Output details | ?0V/ 4-20mA (loop resistance 0 Ohms to 450 Ohms) | |
| Amplifier gain range | 1 to 2000 | |
| Signal input range | -13V to 13V | |
| Linearity error | ?.02% F.S. (typical) | |
| Electrical output bandwidth | 0 to 200Hz (10Hz with filter turned on) | |
| Output ripple | 4mV peak-to-peak (typical) / 15uA peak-to-peak (typical) | |
| Input impedance | 1G Ohms | |
| Temperature coefficient (zero) | ?.002% F.S. /癈 (typical) | |
| Temperature coefficient (span) | ?.003% F.S. /癈 (typical) | |
| Approximate zero adjustment range | ?0V | |
| Operating temperature range | 0癈 to 60癈 |
| 615 RDP PY series amplifier |
615
technical manual (426kb) |
|
Compatible with | Series PY Extreme environment non-contact displacement transducer |
| Number of channels | 1 | |
| Supply voltage | ?5V, 60mA | |
| Transducer excitation | 2.4kHz/4.8kHz/9.6kHz 10mA, (17Vrms maximum) | |
| Output details | ?0V/ 4-20mA (loop resistance 0 Ohms to 450 Ohms) | |
| Signal input range | 10mV to 10V | |
| Linearity error | ?.05% F.S. (typical) | |
| Electrical output bandwidth | 0 to 160Hz (20Hz with filter turned on) | |
| Output ripple | 10mV peak-to-peak (typical) / 120uA peak-to-peak (typical) | |
| Input impedance | 1M Ohms | |
| Temperature coefficient (zero) | ?.005% F.S. /癈 (typical) | |
| Temperature coefficient (span) | ?.020% F.S. /癈 (typical) | |
| Approximate zero adjustment range | ?0V | |
| Operating temperature range | 0癈 to 60癈 |
| 621 LVDT amplifier |
621
technical manual (286kb) |
|
Compatible with | Any standard RDP LVDT (without integral electronics). Most LVDTs from any manufacturer. |
| Number of channels | 2 | |
| Supply voltage | ?5V, 65mA (typical) | |
| Transducer excitation | 1.1V, 5kHz (1kHz to 10kHz with component change), 100mA | |
| Output details | 10V/ 4-20mA (loop resistance 0 Ohms to 450 Ohms) | |
| Amplifier gain range | 2.5 to 833 | |
| Signal input range | 12mV to 4V | |
| Linearity error | ?.05% F.S. (typical) | |
| Electrical output bandwidth | 0 to 400Hz | |
| Output ripple | 10mV peak-to-peak (typical) / 100uA peak-to-peak (typical) | |
| Input impedance | 100k Ohms | |
| Temperature coefficient (zero) | ?.005% F.S. /癈 (typical) | |
| Temperature coefficient (span) | ?.005% F.S. /癈 (typical) | |
| Approximate zero adjustment range | 10V | |
| Operating temperature range | 0癈 to 60癈 |
| 626 LVDT amplifier with Sum/Average/Difference calculation |
626
technical manual (232kb) |
|
Compatible with | Any standard RDP LVDT (without integral electronics). Most LVDTs from any manufacturer. |
| Number of channels | 2 | |
| Supply voltage | ?5V, 65mA (typical) | |
| Transducer excitation | 1.1V, 5kHz, 100mA | |
| Output details | ?0V/ 4-20mA (loop resistance 0 Ohms to 450 Ohms) | |
| Amplifier gain range | 2.5 to 833 | |
| Signal input range | 12mV to 4V | |
| Linearity error | ?.05% F.S. (typical) | |
| Electrical output bandwidth | 0 to 500Hz | |
| Output ripple | 10mV peak-to-peak (typical) / 100uA peak-to-peak (typical) | |
| Input impedance | 100k Ohms | |
| Temperature coefficient (zero) | ?.005% F.S. /癈 (typical) | |
| Temperature coefficient (span) | ?.005% F.S. /癈 (typical) | |
| Approximate zero adjustment range | ?0V | |
| Operating temperature range | 0癈 to 60癈 |
| 628 1/4, 1/2 and full bridge strain gauge amplifier |
628
technical manual (484kb) |
|
Compatible with | 1/4, 1/2 and full bridge strain gauges. Most full bridge strain gauge transducers. |
| Number of channels | 1 | |
| Supply voltage | ?5V, 70mA (plus transducer and output load) | |
| Transducer excitation | 1V to 10V 110mA maximum | |
| Output details | ?0V/ 4-20mA (loop resistance 0 Ohms to 400 Ohms) | |
| Amplifier gain range | 1 to 80000 | |
| Signal input range | -11V to 11V | |
| Linearity error | ?.02% F.S. (typical) | |
| Electrical output bandwidth | 0 to 10/100/1k/10kHz | |
| Output ripple | 40mV peak-to-peak (typical) / 80uA peak-to-peak (typical) | |
| Input impedance | 100M Ohms | |
| Temperature coefficient (zero) | ?.001% F.S. /癈 (typical) | |
| Temperature coefficient (span) | ?.002% F.S. /癈 (typical) | |
| Approximate zero adjustment range | ?.4V | |
| Operating temperature range | 0癈 to 60癈 |
| 681 Limit trip module |
681
technical manual (209kb) |
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Compatible with | The voltage output of any modular 600 amplifier. |
| Number of channels | 4 | |
| Supply voltage | ?5V, 100mA | |
| Output details | Voltage free relay contacts, TTL output | |
| Contact rating | 30Vdc/125Vac,30/60VA | |
| Operation time | 6ms | |
| Signal input range | -10V to 10V | |
| Accuracy | ?.01% F.S. (typical) | |
| Input impedance | 10M Ohms | |
| Operating temperature range | 0癈 to 60癈 |
| 635 Digital display module |
635/636
technical manual (139kb) |
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Number of channels | 24 (maximum) |
| Number of digits | 4 ? red LED (10mm) | |
| Display update rate | 2.5Hz | |
| Accuracy | ?.03% F.S. (typical) | |
| Linearity error | ?.05% F.S. (typical) | |
| Temperature coefficient (zero) | ?.002% F.S. /癈 (typical) | |
| Temperature coefficient (span) | ?.005% F.S. /癈 (typical) | |
| Operating temperature range | 0癈 to 60癈 |
| 636 Digital display module with max/min store for selected channel |
635/636
technical manual (139kb) |
|
Number of channels | 24 (maximum) |
| Number of digits | 4 ? red LED (10mm) | |
| Display update rate | 2.5Hz | |
| Accuracy | ?.03% F.S. (typical) | |
| Linearity error | ?.05% F.S. (typical) | |
| Temperature coefficient (zero) | ?.002% F.S. /癈 (typical) | |
| Temperature coefficient (span) | ?.005% F.S. /癈 (typical) | |
| Operating temperature range | 0癈 to 60癈 |
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650 Serial interface and data logger module This device can log data to its own internal memory or to its serial port A free Microsoft Excel based data logger is available from our website which allows data to be logged to directly to an Excel Spreadsheet |
650/651
technical manual (420kb) |
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Number of channels | 164 (maximum) |
| Data storage capacity | 650 = 10240 650ME1 = 65530 |
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| Baud rate | 600 to 57600 | |
| Number of digits | 4 ? red LED | |
| Display update rate | 1.0Hz | |
| Accuracy | ?.03% F.S. (typical) | |
| Temperature coefficient (zero) | ?.002% F.S. /癈 (typical) | |
| Temperature coefficient (span) | ?.005% F.S. /癈 (typical) | |
| Operating temperature range | 0癈 to 60癈 |
| 631 Power supply |
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Supply voltage | 93 to 264Vac, 80W |
| Operating temperature range | 0癈 to 55癈 |
| Housings available. |
600
System technical manual (483kb) |
| 602 |
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E725/DC DC & Strain Gauge Signal Conditioning Indicator/Conditioner Unit |
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With Free Microsoft Excel Data Logger Application download. The RDP Electronics E725/DC strain gauge signal conditioning unit is an indicator/conditioner for use with most DC and strain gauge transducers. Our E725/DC strain gauge signal conditioning units provide the excitation for the transducer as well as conditioning the return signal. It also incorporates a digital display. Our digital indicator unit is microprocessor based and has an auto-zero function to zero the transducer display on command. Where the transducers are identical, two may be connected to one digital indicator using the optional second strain gauge amplifier input card. The digital indicator may then be set to display either of the input channels as well as sum and difference. The strain gauge amplifier unit has a shunt calibration facility. Shunt calibration is a technique that allows a suitable transducer to be calibrated without the need to apply load / force/ pressure etc. Most RDP strain gauge transducers all have a shunt calibration figure on their calibration certificate, making them appropriate for this technique. Unlike many strain gauge amplifier units of its type, the E725 has a high bandwidth analogue output of 500Hz. Both voltage and 4-20mA outputs are available. At the heart of our panel meter is a microprocessor. This provides some useful features such as peak and trough store, remote/auto zero, push button configuration, signal hold, calculated channels and of course digital re-transmission. The unit however remains as simple to use as a panel meter. The E725 supports RS232 as standard and, RS485 as an option. The RS485 is addressable so that up to 256 units can be connected together to form a communications network. Four TTL limits with front panel LEDs are standard, with voltage free relays offered as an option. |
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| Dimensions (1/8 DIN) | Dimension | Wide | High | Deep |
| Bezel size | 96mm | 48mm | Max depth 180mm (incl connectors) | |
| Panel cut out | 93mm | 45mm | ||
| Power Supply Standard Options Power Supply Additional Charge Options Power Supply Tolerance: - Power Drawn (nominal at stated voltage) |
230ac or 115Vac 105Vac, 5Vdc, 12Vdc or 24Vdc Ac versions (+5% / -15%). Dc versions (+50% / -25%) Ac versions 7VA, Dc versions 7W. |
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| Display Detail | 5 digit 13.2mm red LED | |||
| Display Resolution | 1 in ±99999 | |||
| Display Update | 3Hz | |||
| Display Auto-Zero Range | 100% display range | |||
| A-D converter resolution. | Significantly better than 1 in ±99999 | |||
| Transducer Excitation | 0 to 10V (adjustable) and +15V, (-15V or -8V or -6V) | |||
| DC Amplifier Bandwidth | Flat to 500Hz | |||
| DC Amplifier Input Resistance | 100M Ohms differential | |||
| DC Amplifier Linearity (typical) | ±0.02% F.S. | |||
| Amp. CMRR | 110dB typical. Dc to 50Hz | |||
| Amp. CMVR | ±12.5V typical | |||
| Amp. Output. | Standard - Transducer 0 to +FS = 0 to10V or
4-20mA On request - Transducer -FS to +FS = 0 to 10V or 4 to 20mA |
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| Amp. Signal input range | 2.5mV to 10V rms and 4-20mA | |||
| Amp. Zero Adjustment Range (analogue output only) | ±1.5V (analogue output) | |||
| Limits (Standard) | Quad limits with front panel annunciators and optional voltage free relays. 20ms operation time (max) | |||
| Limits (Optional fast version) | 2 limits (mechanical or solid state to order), 5ms operation time. Replaces standard limits. | |||
| Max/Min (Min pulse width for 1 digit accuracy) | NOMINALLY 40ms (filter value 1), 500ms (filter value 5) | |||
| Max/Min (Optional fast version), accuracy for 0 to FS step | Change in 10ms = 0.1% F.S. Change in 1ms = 0.2% F.S. |
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| Second transducer input | Transducers sensitivities must be within 15% of each other. They must have a common full scale value. | |||
| External Digital Control | ZERO, RESET and HOLD | |||
| Serial Interfaces | RS232 (standard), RS485 (optional) | |||
| Temperature range | -10°C to 45°C (ac power) -10°C to 55°C (dc power) |
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| Weight | Dc supply - 430gms ac supply - 510gms max. |
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| Input and Output connections | Transducer and option connectors :- 9 pin D type.
Digital I/O:- 15 pin D type. Analogue:- 3.5mm jack. |
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| Environmental Protection | IP50 (whole unit), IP65 max (front panel with sealant) | |||
Order Code Structure
| E725 | Supply Voltage | Input Card | Option board | Serial output | Special Options | |||||
| 230 | =230Vac | DC1 | =SG & Amplified | 0 | =None | 0 | =RS232 | 0 | Factory selection (use 0) | |
| 115 | =115Vac | DC2 | =SG & 24V Supply Amplified | R | =4 mechanical relays | 1 | =RS485 | |||
| 105 | =105Vac | DC3 | =SG & D2s | RS | =4 solid state relays | |||||
| 5 | =5Vdc | FR | =2 fast mechanical relays | EG:-E725-230-DC-2DC-0-0 is powered from 230Vac, has a second DC input and has an RS232 output. |
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| 12 | =12Vdc | FRS | =2 fast solid state relays | |||||||
| 24 | =24Vdc | FM | =Fast max/min board | |||||||
| 2DC | =Second DC input board | |||||||||
| Table of option card
compatibility Only one option card may be fitted. However, the inclusion of an option card may affect the operation of other features. |
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| DCX | 2DCX | FM | R/RS | FR/FRS | |
| Function keys:- 3 keys may be programmed which have a gain and zero offset from the primary channel. (allows multiple engineering units for example) |  |
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| Polynomial Linearisation (user can generate a polynomial to linearise a transducer)** | |
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| Multi-point calibration (uses 11 calibration points to help correct transducer errors)** | |
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| Software limits (4 off) | |
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| *Function keys are fixed to give A, B, (A+B)/2 and A-B,
A and B being the two input channels. **The E725 has a facility that allows a user-selectable value to be added to the display reading, it is called 'engineering offset'. This facility is not available if multi-point or polynomial calibrations are used. |
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Additional Information |
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Free data logger application. This RDP Electronics utility enables the transducer display value to be read from the 725, directly to a suitable PC having an appropriate version of Microsoft Excel. The value displayed on the panel meter can be logged in real time. The user may configure Microsoft Excel to produce real-time graphs etc. A correctly wired serial lead is required. |
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The E725/DC can have two strain gauge inputs and can be configured to show, and output via the analogue output either channel A, channel B, A+B or (A+B)/2. The two transducers must be of the same range, display the same value at full scale and have a sensitivity within 15% of each other. Voltage or 4-20mA outputs of the selected transducer display mode are available. |
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Calibration options include two point (zero & FS), three point (-FS, 0 and +FS), 11 point and 10th order polynomial. |
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The serial output can be either RS232 or RS485, the latter can have up to 256 units on the same network providing easy interface with data loggers etc. |
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Calibration and set-up information for the indicator/conditioner are stored on EEPROM so there is no back up battery. |
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All four limits can be configured as high or low, latching or momentary and normally energised. |
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Limits can be set on High, Low, or deviation from a nominal value. |
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MAX, MIN and TIR functions enable the unit to monitor important trend information for quality analysis and run-out calculations. |
Due to the RDP Electronics policy of on-going development,
specifications may change without notice.
Any modification may affect the
specification of our equipment.
