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Digital Panel pH Transmitter/Indicator

• Two 4-20 mA isolated current output modes - normal and expanded
• Large 0.56" LED display
• Rugged aluminum 1/8 DIN housing

The Model 691N is easy to install; this two-wire pH transmitter is housed in an all aluminum 1/8 DIN case for quick and durable mounting. It features two output modes: Normal Mode provides an isolated 4-20 mA output over the full 0.00 to 14.00 pH range and Expanded Mode gives an isolated 4-20 mA output over any two pH units. The large 3 1/2 digit, 0.56" high LED is easy to read even in dimly lit areas. Calibration and manual temperature compensation controls are conveniently located on the front of the meter face; pH electrode and output connections are located on the back of the instrument. Price includes transmitter and manual.

Specifications

Range: 0.00 to 14.00
pH Resolution: 0.01
pH Accuracy: 0.02 pH ±1 digit
Transmitter Output: "NOR" Mode: 4-20 mA over 0-14 pH; "EXP" Mode: 4-20 mA over any two pH units
Output Current Accuracy: 0.3%
Transmitter Load: 550 Ohms max
Isolation Voltage: 500 VDC min
Temp Compensation: Manual from 0-100° C
Display: 3 1/2 digit 0.56" LED
Power: 115/230 VAC ±15%, 50/60 Hz
Size: 3.75" x 1.9" x 6.75"
Weight: 1.4 lbs

Note: pH electrodes, calibration solutions and other accessories are available; contact Kernco for information.
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LED pH/ORP Indicator/Controller

• Compact 1/8 DIN size
• Dual set point control
• Surprisingly inexpensive
• Automatic temperature compensation

The Model 3671 is an economically priced, panel mount pH/ORP monitor/controller. It is ideal for simple on-off control. It features (ATC) automatic temperature compensation, high and low over-range lights, analog recorder output and a large, red 0.5" LED readout. Adjust calibration, slope and set-points via the recessed front panel potentiometers. Press the front-mounted push buttons to display current process value, high or low set points or temperature. An internal switch lets you select operating mode (pH or ORP). The 8 amp capacity relay contact (at 115 VAC) allows you to control pumps, solenoid valves, etc. Price of the 3671KB kit includes controller, BNC glass-bodied pH electrode, ATC/Temp probe and manual.

Specifications

• pH Range: 0.0 to 14.0
• mV Range: ±1999
• Temp Range: 0-100° C
• pH Resolution: 0.1
• mV Resolution: 10
• Temp Resolution: 1° C
• pH Accuracy: 0.1 ±1 digit
• mV Accuracy: ± 0.1% ±1 digit
• Temp Accuracy: 1° C ±1 digit
• Temp Compensation: Automatic from 0-100° C
• Recorder Output: pH: 1400 mV; mV: ±1999; Temp: 1000 mV
• Dead Band: ±0.1 pH for each set point
• Relay Band: One SPDT relay rated for 8 amps at 115 VAC or 4 amps at 230 VAC
• Power: 115/230 VAC, ±15%; 50/60 Hz
• Size: 3.8" x 1.9" x 6.8"
• Weight: 1.5 lbs.

Note: pH and ORP (mV) electrodes, calibration solutions and other accessories are available; contact Kernco for information.
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LCD Panel-Mount pH/ATC Transmitter

• Automatic temperature compensation
• Easy-to-read 0.5" LCD display
• Isolated 4-20 mA output
• Rugged aluminum 1/8 DIN housing

The Model 692 is easily installed; this 4-wire transmitter is housed in an all aluminum 1/8 DIN case for easy and durable mounting. Calibration adjustment controls are conveniently located on the front panel along with the large, 0.5" high LCD readout. Connections for pH electrodes, ATC probe and output are located on the back of the instrument. The Model 692 accepts pH electrodes with BNC connectors; an 100 ohm platinum RTD probe for automatic temperature compensation is required. Unit transmits an isolated 4-20 mA output over the full 0 to 14 pH range. Price of 692KB kit includes epoxy-bodied pH electrode, ATC probe, and manual.

Specifications

• Range: 0.00 to 14.00 pH
• Resolution: 0.01 pH
• Accuracy: 0.02 pH ±1 digit
• Temp Compensation: Automatic from 0-100° C
• Current Output: Isolated 4-20 mA
• Current Accuracy: 0.1%
• Max Transmitter Load: 600 ohms
• Isolated Voltage: 500 VDC min.
• Display: 0.5" LCD
• Power: 115/220 VAC ±10%; 50/60 Hz
• Size: 3.8" x 1.9" x 6"
• Weight: 2.2 lbs

Note: pH electrodes, calibration solutions and other accessories are available; contact Kernco for information.
 

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Prices shown apply to sales to companies within the United States.

For sales outside the US contact Kernco Instruments for appropriate prices for your country.

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