Salient Features

• ON/OFF controller.
• Single channel.
• Input from pH/ORP Electrode OR from Transmitter.
• Open sensor indication.
• Software calibration.

Electronet’s series PH-104 are PH/ORP Indicator specially designed for various industrial applications. These can be used for monitoring pH/ORP of a solution. The measuring range and control points ate settable through the keypad on front fascia and control output is available at the rear terminals. Retransmission output, communication port & printer port are additive features of PH-104

Technical Specifications

Type of Control: ON/OFF
No. of Input: 01 No.

Type of Input:

1. From pH/ORP Electrode (compatible to any make electrode)
2. 4-20 mA DC from pH/ORP Transmitter

Display: 4 x 2, 0.5” LED
Range: 0-14 pH
Accuracy: better than +/- 0.05 pH
Power Supply: 230 V AC, 50 Hz +/- 10%
Power Consumption: < 10 VA
Temperature Drift: < 0.01% of full scale per ^oC change
Response Time : < 1000 mSec for electrode input & <100 mSec for transmitter input
Isolation: 1.4 KV between Input, Output & Power Supply
Enclosure: MS Powder Coated
Dimensions: 96 (H) x 96 (W) x200 (D) in mm approx.
Mounting: Flush of the Panel
Weight: 1.5 kg (Approx.)
Operating Conditions: Temperature 0 to 55^oC / Humidity 5 to 95% non condensing

OPTIONAL

Transmitter Supply: 24 V DC, 30 mA
Retransmission Output: 4-20 mA / 1-5 V, Isolated
Alarm Output: Potential free Relay Contact –2 nos. (1 c/o, 1 Amp. @ 230 V AC)
Configurable for high & low
Communication Port: RS 485 / RS 232 supporting MODBUS RTU protocol

ACCESSORIES (on demand)

Temperature Compensation Sensor: RTD, Pt 100 (0-100^oC)
Flow Through Assembly: SS / PP
Electrode Cleaning System : SS / pp