FREQUENCY INPUT TRANSMITTER
PLUG-IN MODULE, FIXED RANGE

JH7010I: Frequency Input, Input/Output Isolated
- Full Scale Frequencies from 10Hz to 100kHz
- Expanded Scale (Elevated-Zero) Ranges Available
- Adjustable Sensitivity Threshold
- Pullup Resistor and Sensor Excitation Included
- AC or DC Power Options
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JH7010I
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DATA SHEET |
Model JH7010I provides a DC output proportional to the input signal’s
frequency or pulse rate. A fixed range device, it is precisely calibrated to your specified ranges at the
factory. (For a rangeable transmitter see Model JH7580.)
The JH7010I accepts input amplitudes from 25mV (50mV pk-pk - see specifications) to
350V peak without recalibration. A sensitivity adjustment provides optimum tradeoff between sensitivity and
noise rejection for each application. Pin connections allow the selection of two options: a pullup resistor
for dry-contact or open-collector inputs and a built-in DC excitation supply (approx. 18V) for low-current DC
proximity sensors (25mA max).
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.
AC or DC power choices are available. (A reverse-acting option is not available on
JH7010/7010I.)
ORDERING INFORMATION
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Model Number: |
Select JH7010I-AC for AC power, JH7010I-DC for DC power.
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Input Range: |
Specify any frequency range allowed by the
"Input Capabilities" spec, below.
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Input Sensitivity: |
The adjustment is normally factory-set for
maximum sensitivity. If you wish a specific setting, please specify it on your order. (See specifications.)
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Output Range: |
Specify any DC voltage or current range allowed by
the "Output Capabilities" spec, below.
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Power: |
Specify 115Vac, 230Vac, 12Vdc or 24Vdc.
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Loop-Powered Output: |
4/20mA "current sink" output stage
for connection to devices whose inputs provide 24Vdc loop excitation. Specify Option LPO. |
INSTALLATION AND CONNECTIONS
These transmitters plug into any standard 8-pin circular ("octal") relay socket.
JH Technology offers two sockets: DS008 for DIN-rail or surface mounting and ST008 for Snap-Track mounting
(see the Accessories page). Pin connections are:
| Pin 1: |
Power (AC or, if DC power option, DC plus). |
| Pin 2:
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+18V (approx.) sensor excitation voltage output. See specifications. |
| Pin 3: |
Power (AC or, if DC power
option, DC minus). |
| Pin 4: |
Pullup resistor (3.9Kohms to +5V). Jumper pins 4 and 5 together for use with
dry contact or open-collector (NPN) inputs. |
| Pin 5: |
Frequency input. |
| Pin 6: |
Input common. |
| Pin
7: |
Output plus. |
| Pin 8: |
Output minus.
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DETAILED SPECIFICATIONS
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Input Range Capabilities: |
Minimum span 10 Hz. Maximum frequency
100kHz. Low-end input may be zero, or may be as high as 2.5 x span (for example, 20Hz span with 50Hz
elevation, for 50/70Hz range).
(Input Impedance: 200kohms or greater.)
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Input Amplitude: |
350V peak (700V pk-pk, 250V rms sine wave)
maximum.
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Threshold Adjustment (25 turn trimpot): |
Maximum Sensitivity
(full clockwise): 50mV pk-pk for frequencies below 1kHz. Increases with frequency to 1V pk-pk at 100kHz.
Minimum Sensitivity (full counterclockwise):8V pk-pk for
frequencies below 1kHz. Increases with frequency to 20V pk-pk at 100kHz.
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Input Pullup Resistor: |
3.9Kohms to +5V. Jumper pins 4 and 5 to
activate.
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Input Sensor Excitation: |
Approx. 18Vdc, unregulated, 25mA max
current. Available at pin 2.
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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).
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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).
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Accuracy (factory calibration): |
+/-0.1% of span or 10 microvolts, whichever is greater.
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Adjustability: |
Zero and span each are adjustable approx. +/-15%
of span.
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Linearity: |
+/-0.05% of span or better.
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Isolation: |
Power, 1,500Vac rms (2,100V peak). Input/Output, 1,000Vac rms (1,400V peak).
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Guaranteed Operating Temperature: |
-10 to +60 deg. C (14 to 140
deg. F).
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Temperature Stability: |
+/-0.02% of full-scale frequency per deg. C, or better.
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Power Requirements: |
AC, 115 or 230Vrms, 50/60Hz, 2.5V-A. DC, 12
or 24V, 2.5W.
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