JH5500 STRAIN GAUGE TRANSMITTER
DIN-RAIL MOUNT, FIXED RANGE
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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.
Available options include AC and DC power choices and reverse-acting transmitter (decreasing output with increasing input).
ORDERING INFORMATION
| 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). |
| 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:
1: Input plus (bridge output).
2: Input minus (bridge output).
3: Bridge excitation plus.
4: Bridge excitation minus.
5: Output plus.
6: Output minus.
7: Power (AC or, if DC power option, DC plus).
8: Power (AC or, if DC power option, DC minus).
DETAILED SPECIFICATIONS
| 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: | Under 100 milliseconds. |
| 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. |