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### D-29 Our Industrial pH Instrumentation and Electrodes product line continues to expand, visit omega.com for new details! The model PHTX-014 pH two wire transmitter is designed to provide a standard 4 to 20 mA current output which is proportional to the pH being measured. Its small size and encapsulated construction allow for easy installation and will accommodate any pH electrode with a BNC connector. Temperature compensation is either manual or automatic with use of any 1000 Ω Platinum RTD.
The PHTX-212 is the same as the PHTX-014 but with a range of 2 to 12 pH. This is a popular choice for use with recorders or any application where it is convenient to divide the output into ten divisions.
The PHTX-11 features include a NEMA-4X housing, an integral LCD display for continuous pH reading or for a direct corresponding readout in milliamps, using a convenient push-button switch. The 4 to 20 mA output signal may be scaled in the field to meet specific pH ranges in any 1 to 14 pH unit increment. Temperature compensation is manual using a fixed resistor or automatic using any of OMEGA’s 700 Series thermistors.**Isolated or Non-Isolated Models Available**

**4 to 20 mA Output**

**Manual or Automatic Temperature Compensation**

Comes complete with operator’s manual. **Ordering Examples: PHTX-11,** isolated 4 to 20 mA transmitter, **PSS-D12B,** power supply, $430 + 150 = **$580. PHTX-014,**  non-isolated 2-wire pH transmitter, **PSS-D12B** power supply, $189 + 150 = **$339. PHTX-11, isolated**  **4 to 20 mA transmitter, $430, shown smaller than actual size.**  

## Industrial pH Two Wire 4 to 20 mA Transmitters

**PHTX-212/PHTX-014 Starts at**  **$** 

# 189

To Order **(Specify Model Number) Model No. Price Description**  **PHTX-212 $189** Non-isolated 2 wire pH transmitter, 2 to 12 pH
**PHTX-014 189** Non-Isolated 2-wire pH transmitter, 0 to 14 pH
**PHTX-ORP 189** Non-Isolated 2-wire ORP transmitter

**PHTX-11 430** Isolated 4 to 20 mA pH transmitter with integral display, NEMA-4X enclosure
**PSS-D12B 150** 12 or 24 Vdc power supply AVAILABLE FOR FAST DELIVERY! **PHTX-014, non-isolated 2-wire**  **transmitter, $189. Shown smaller than actual size.** 



### Specifications **Range: PHTX-014:**  0 to 14 pH; **PHTX-212:** 2 to 12 pH; **PHTX-ORP:** 0 to 2000 mV **PHTX-11:** Any 1 to 14 pH units, user selectable **Accuracy: PHTX-014, PHTX-212:**  ±0.02 pH **Operating Temperature: PHTX-014, PHTX-212:**  -25 to 70°C (-13 to 158°F) **PHTX-11:** -10 to 60°C (14 to 140°F) **Display Resolution: PHTX-11:** 0.01 pH **Input Impedance:** > 10 13 Ω **Temperature Compensation: Manual:**  fixed resistors; **Automatic: PHTX-014, PHTX-212:** 1000 Ω platinum RTD **PHTX-11:** OMEGA’s OL-700 series thermistor **Connector:** BNC **Power:** 12 to 80 Vdc (24 Vdc recommended) **Output: PHTX-014, PHTX-212:**  Non-isolated 4 to 20 mA **PHTX-11:** isolated 4 to 20 mA **Input to Output Isolation: PHTX-11:**  600 V max **Dimensions: PHTX-014:**  50.8 H x 38.1 W x 24.1 mm D (2 x 1.5 x 0.95"); **PHTX-11:** 125 H x 74.2 W x 99.6 mm D (4.92 x 2.92 x 3.92") **Display: PHTX-11:**  3 1 

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