מכשירי בקרה

alpha pH 802 בקר PH לפנל דגם A-PH-800

Product Features

v	User-Customization through Advanced Setup Menu offers flexibility in matching the controller's functions to suit individual's specific requirement

v	Automatic Calibration with Auto-Buffer Recognition eliminates mistakes during calibration

v	Symmetrical Mode Operation eliminates electronic noise problems when used with solution ground

v	One-Point Online Calibration without shutting down the line

v	Hold Relay for use with float switches/flow switches and other controllers as a failsafe function

v	0 to 2000 Second Time Delay Adjustment on control and alarm delays

v	Galvanically Isolated Scaleable 0-20/4-20 mA Outputs for pH/ORP

v	Hysteresis Band Protection against rapid control switching of relays from wear and tear

v	Non-Volatile Memory retains all stored parameters and calibration data even if power fails

v	Large Dual Display shows pH (or ORP) with temperature simultaneously - features clear multiple icons, set points, and status messages

v	Choice of Temperature Sensor Pt100/Pt1000 with 2-wire or 3-wire temperature input selection

v	Easy Installation and Wiring with detachable plug-in connectors

Applications

General: Useful for any batch or on-line type application that requires accurate pH or ORP control.

Water Purification/Treatment: Use for batch and on-line control of incoming process water, rinse water treatment, recirculating system and waste water treatment.

Industrial: Ideal for chemical processing, food processing. aquarium, pharmaceutical, hydroponics and waste control industries.

Specifications

Product Specification	Description
pH Range	0.00 to 14.00 pH
Resolution & Accuracy	0.01 pH & ±0.01 pH
mV Range	-999 to 1000 mV
Resolution & Accuracy	1/ ±2 mV
Temperature Range	-10 to 110 °C
Resolution & Relative Accuracy	0.1 °C & ±0.5 °C
Temperature Sensor	Pt 100 (3-wire)
Temperature Compensation	Auto / Manual (0°C to 100°C)
Set Point and Controller Functions
Function	Limit Control
Switching pH/ORP Hysteresis	0.00 to 2.00 pH or 0 to 100 mV
Contact Outputs, Controller	2 SPDT relays
Switching Voltage/ Current/ Power	Max 250 VAC/ Max 3A/ Max 600 VA
Electrical Data and Connections
Power Requirement	85 to 260 VAC, 50/60 Hz or DC
Signal Output/ Load	4-20mA galvanically isolated / 200Ω
pH/ORP Input	BNC (10¹² Impedence)
Connection Terminals	3 detachable connectors (3-pin; 7-pin & 9-pin terminal blocks)
Main Fuse	250mA, Anti-surge (BUSSMAN S504 + 250mA)
Environmental Conditions
Maximum Relative Humidity	80% up to 31°C decreasing linearly to 50% at 40°C
Ambient Temp. Operating Range	-10 to 50 °C (14 °F to 122°F)
Mechanical Specifications
Dimensions	96 x 48 x 150 mm
Weights	300 g (boxed)