

PLUG-IN
Frequency
JH7010I

JH7010I: Frequency Input, Input/Output Isolated
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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.
Available options include AC or DC power choices and reverse-action Option RT (decreasing output with increasing input).
| Model Number: |
Select JH7010I-AC for AC power, JH7010I-DC for DC power. |
| Input Range: |
Specify any frequency range allowed by the "Input Capabilities" spec, below. |
| 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.) |
| 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. Specify Option RT. |
| Loop-Powered Output: | 4/20mA "current sink" output stage for connection to devices whose inputs provide 24Vdc loop excitation. Specify Option LPO. |
| Urethane Coating: |
Specify Option "U" |
The JH7010I plugs into any standard 8-pin circular ("octal") relay socket. JH Technology offers a socket suitable for DIN-rail or surface mounting (see the Accessories page). Pin connections are:
| Pin 1: | Power (AC or, if DC power option, DC plus). |
| Pin 2: | +18V (approx.) sensor excitation voltage output. See specifications. |
| Pin 3: | Power (AC or, if DC power option, DC minus). |
| Pin 4: | Pullup resistor (10Kohms to +9V). Jumper pins 4 and 5 together for use with dry contact or open-collector (NPN) inputs. |
| Pin 5: | Frequency input. (For normal inputs use pins 5&6) |
| Pin 6: | Input common. |
| Pin 7: | Output plus. |
| Pin 8: |
Output minus. |
| 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.) |
| Input Amplitude: |
350V peak (700V pk-pk, 250V rms sine wave) maximum. |
| 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. |
| Input Pullup Resistor: |
10Kohms to +9V. Jumper pins 4 and 5 to activate. |
| Input Sensor Excitation: |
Approx. 18Vdc, unregulated, 25mA max current. Available at pin 2. |
| 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. |
| Isolation: |
Power, 1,500Vac rms (2,100V peak). Input/Output, 1,000Vac rms (1,400V peak). |
| Guaranteed Operating Temperature: |
-10 to +60 deg. C (14 to 140 deg. F). |
| Temperature Stability: |
+/-0.02% of full-scale frequency per deg. C, or better. |
| Power Requirements: |
AC, 115 or 230Vrms, 50/60Hz, 2.5V-A. DC, 12 or 24V, 2.5W. |