PH4502C PH Meter

What power supply and current requirements does the PH4502C meter need?

Heating voltage is 5 plus minus 0.2 V and can be AC or DC. Working current is 5 to 10 mA and power consumption is up to 0.5 W.

What is the measurement range and the response time of the device?

Detection range for pH is 0 to 14 and temperature range is 0 to 80 C. The response time is less than or equal to 5 seconds and the stability time is up to 60 seconds.

What are the output interfaces and the pinout of the module?

The device outputs an analog voltage signal. Pinout includes TO temperature output, DO 3.3V pH limit trigger, PO pH analog output, Gnd for PH probe, Gnd for board, VCC 5V DC, POT 1 analog reading offset, and POT 2 PH limit setting.

What are the environmental and physical specifications of the product?

Operating temperature range is minus 10 to 50 degrees Celsius. Working humidity is 95 percent RH (nominal 65 percent RH). Size is 42 mm by 32 mm by 20 mm. Service life is 3 years.

How can I adjust the PH limit and the reading offset on this meter?

PH limit setting is controlled by POT 2 and the analog reading offset is POT 1 nearest to the BNC connector.