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E725 Microprocessor Based Digital Indicator / Panel Meter

LVDT amplifier
Strain gauge transducer amplifier
Digital display module
Limit trips
Serial output
Voltage / 4-20mA output
image of panel meter E725 For Strain Gauge And LVDT Transducers
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.
Supply
Type Supply voltage Operating temperature range Total weight
E725-230 230 ac ( +5/-15%), 50/60Hz, -10℃ to 45℃ 510g
E725-115 115 ac ( +5/-15%), 50/60Hz, -10℃ to 45℃ 510g
E725-24 24V dc (+50%, -25%) -10℃ to 55℃ 430g
E725-12 12V dc (+50%, -25%) -10℃ to 55℃ 430g
E725-5 5V dc(+50%, -10%) -10℃ to 55℃ 430g

Input Card Type
Type Description Transducer excitation Signal input range Analogue output bandwidth Input impedance Linearity error (% F.S.)
AC Any standard RDP LVDT (without integral electronics). Most LVDTs from any manufacturer. 1.1V rms , 5kHz 30mA 0.015V to 4V 0Hz to 250Hz 100k Ω ±0.05% F.S.
DC1 Most full bridge strain gauge transducers 3V to 10V & ±15V, 100mA 0.003V to 10V 0Hz to 300Hz 100M Ω ±0.02% F.S.
DC2 Most 4-20mA transducers 23V, 100mA 0.003V to 10V, 4-20mA 0Hz to 300Hz 100M Ω ±0.02% F.S.
DC3 D2 & LDC 6V, 100mA 0.003V to 10V 0Hz to 300Hz 100M Ω ±0.02% F.S.

Option card
Type Description
0 None
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 type DC1. Transducers must have sensitivity within 15% of each other and display the same full scale value
2DC2 Second input of type DC2. Transducers must have sensitivity within 15% of each other and display the same full scale value
2DC3 Second input of type DC3. Transducers must have sensitivity within 15% of each other and display the same full scale value
R 4 X Relay card (Mechanical), 20ms, Contact rating = 150V dc/125V ac, 30W/60VA
RS 4 X Relay card (Solid-state), 20ms, Contact rating = 200V dc/130V ac, 200mA
FR 2 X Relay card (Mechanical), 5ms, Contact rating = 150V dc/125V ac, 30W/60VA
FRS 2 X Relay card (Solid-state), 5ms, Contact rating = 200V dc/130V ac, 200mA
FM Fast peak catcher card

Serial output
Type Description
0 RS232 (Standard)
1 RS485 (Optional)

Analogue output
Type F.S. - 0 F.S. +
Standard 0V/4mA +5V/12mA +10V/20mA
Standard -10V 0V/4mA +10V/20mA
Special option 11 -10V 0v/4mA +10V/20mA
Special option 12 0v/4mA +5V/12mA +10V/20mA

Part number
PartNumber

Other features
Type Description
SO26 3 modes may be programmed each with a different gain and offset from the primary channel
Standard With Sum/Average/Difference calculation
Standard Multi-point calibration, up to 11 calibration points to improve linearity

dimensional drawing of E725
PMHW = 92mm
PMHH = 44mm
PMBW = 96.5mm
PMBH = 48.5mm
PMD = 124mm
PMDC = 174mm
Panel cut-out = 93mm X 45mm
WARNING - PERSONAL INJURY
Do not use these products as safety, emergency stop or feedback devices in any application where the failure of this product could result in damage to equipment, personal injury or death.
Due to our policy of on-going development, specifications may change without notice. Any modification may affect some or all of the specifications for our equipment. All dimensions and specifications are nominal.
https://www.rdpe.com/ex/e725.htm
20190730