Installation Guide

pH, ORP Meter
with Excel-Formatted Data Logging SD Card
General Tools & Instruments
80 White Street, New York, NY 10013-3567
TEL: [phone] TOLL FREE: 800. 697. 8665
[e-mail] www.generaltools.com
Specifications:
Embedded Microcontroller: Custom one-chip LSI device
Display Type: LCD with green backlight
Display Size: 2.05 x 1.5 in. (52 x 38mm)
Parameters Measured: pH, ORP
Measurement Range:
• For pH: 0 to 14
• For ORP: -1999 mV to +1999 mV
Measurement Accuracy:
•
For pH: ± (0.02 pH units + 2 digits)
• For ORP: ± (0.5% of reading + 2 digits)
Measurement Resolution:
• For pH: 0.01 unit
• For ORP: 1 mV
Temperature Compensation:
• Automatic between 32° and 150°F (0° and 65°C) when
using optional ATC temperature probe.
• Manually settable between 32
° and 212°F (0° and 100°C)
without ATC probe
Storable/Recallable Readings: Maximum, minimum
Data Logging Sampling Time: 1 second to 9 hours
SD Card Capacity: 1 GB to 16 GB
Settable Parameters: Date, time, auto power off, beep sound,
sampling time, decimal point or comma decimal division,
temperature unit, compensation temperature
Operating Temperature: 32° to 122°F (0° to 50°C)
Operating Relative Humidity: 0 to 85%
Power Consumption:
• 14 mADC (normal operation, with backlight off
and SD card not saving data)
• 37 mADC with backlight on and card saving data
• 49 mADC with backlight on and card saving data
Dimensions: 6.97 x 2.68 x 1.77 in. (177 x 68 x 45mm)
Weight: 1.08 lb. (489g)
Power Source:
Six “AA” batteries or optional 9-VDC AC adapter
• Carrying case
• 2 GB SD memory card
• User’s manual
Optional Accessories:
• 9VDC adapter for
110V power supply
(General P/N AC1)
• ORP probe
(General P/N ORP14)
• Automatic temperature
compensation (ATC) probe
(General P/N TP07)
• Professional-grade 0 to 14
pH electrode
(General P/N PHS1)
• Heavy-duty spear tip pH
electrodes (General P/Ns
PHS4HD and PHS6HD)
• Combination pH
electrode/temperature
probe
(General P/N PHS5T)
• Combination pH
electrode/temperature
probe with automatic
temperature compensation
(General P/N PHS3K7)
• SDRD1 - SD Card Reader
Included Accessories:
28
No. DPH230SD
• Performs real-time automatic data logging at
sampling time settable from 1 second to 9 hours
• Also supports manual logging and changing of
card storage location
• Big (2.5 in. diagonal) front-panel green backlit
LCD is easy to read
• Auto power off function
Features:
• Measures pH and ORP using optional electrodes
• Measured parameter can be changed by pressing
front-panel button
• Optional ATC temperature probe automatically
calibrates pH electrode to pH 4, pH 7 and pH 10
• Displays maximum and minimum readings