• Input Spans as low as 0.4mV/V
  • Excitation Adjustable from 4 to 12V
  • Quick-Check Red/Green Output LEDs
  • High Speed "Option HS" Available
  • DIN-Rail Mount, 1 Inch Wide
  • Unpluggable Terminal Strip
  • AC or DC Power Options



The Model JH5500 Strain Gauge Transmitter supplies excitation to a strain gauge or other resistance bridge, amplifies the bridge voltage and provides a proportional, isolated DC voltage or current output. A low-drift input amplifier maintains accurate readings under varying ambient conditions.

Red-green Quick-Check LEDs give a quick indication of the relative output. Red is brighter at the low end, green at high, while at mid-scale both are approximately equal. Red-only indicates offscale low while green-only indicates offscale high.

Standard transmitters include filtering to smooth measurements and minimize noise pickup. When fast response is needed, Option HS speeds the response time to approximately 1 millisecond. Other response speeds are available on special order.

Available options include AC and DC power choices and reverse-acting transmitter (decreasing output with increasing input).


Model Number:  Specify Model JH5500A for AC power, JH5500D for DC power.
Input Range:  Specify range required in millvolts (mV), volts (V) or millivolts per volt (mV/V). For example, with 10V bridge excitation a range of 0/20mV is the same as 0/2 mV/V. See Specifications below for input capabilities. Offset input ranges are allowed.
Bridge Excitation:  Standard setting is 10Vdc. User-adjustable from 4 to 12Vdc. If you wish a factory setting other than 10V, please specify on your order.
Output Range:  Specify any DC voltage or current range allowed by the "Output Capabilities" spec, below.
Power:  Specify 115Vac, 230Vac, 12Vdc or 24Vdc.
Reverse-Acting Transmitter (decreasing output with increasing input) Change last digit of the model number to 1 (for example, JH5501A).
Loop-Powered Output:  4/20mA "current sink" output stage for connection to devices whose inputs provide 24Vdc loop excitation. Change the last digit of the model number to 2 (for example, JH5502A).
High Speed Response:  

Approximately 1 msec (See Specifications). Specify Option HS.

Urethane Coating:  Specify Option U.

Model JH5500 snaps onto 35mm DIN rail. Connections are made to the front-panel terminals. The terminal strip unplugs to facilitate calibrating or replacing the transmitter.

Connections to the 8 terminals (top to bottom) are:
  Input plus (bridge output).
Input minus (bridge output).
  Bridge excitation plus.
Bridge excitation minus.
Output plus.
Output minus.
Power (AC or, if DC power option, DC plus).
Power (AC or, if DC power option, DC minus).


Input Capabilities:  4mV (0.4mV/V at 10V excitation) minimum span, 10V (1V/V at 10V excitation) maximum. Offset ranges are allowed. (Input Impedance: 200kohms or greater.)
Excitation Voltage:  Adjustable 4 to 12Vdc. Factory set to 10V unless otherwise specified. 40mA maximum current. (120 ohm bridges limited to 4.8V excitation or less. 350 ohm bridges ok to 12V.)
Voltage Output Capabilities:  1 volt minimum output span, -10 to +15V absolute limit. Offset ranges are allowed. Maximum output load, 10mA (1Kohm at 10V output).
Current Output Capabilities:  1mA minimum output span, 0 to +25mA absolute limit. Positive offsets are allowed, negative outputs are not. Output drive capability, 24V (1,200 ohms max. at 20mA output).
Accuracy (factory calibration):  +/-0.1% of span or 10 microvolts, whichever is greater.
Adjustability:  Zero and span each are adjustable approx. +/-15% of span.
Linearity:  +/-0.05% of span or better.
Response Time:  

Standard: Under 100 milliseconds. Option HS: Approximately 95% complete in 1 msec. Frequency response 3dB down at approx. 600Hz.

Isolation:  3-way (Power/Input/Output) 1,500Vac rms (2,100V peak).
Guaranteed Operating Temperature:  -10 to +60 deg. C (14 to 140 deg. F).
Temperature Stability:  +/-(0.02% of span plus 1.3 microvolts) per deg. C, or better.
Power Requirements:  AC, 115 or 230Vrms, 50/60Hz, 2.5V-A. DC, 12 or 24V, 2.5W.