PART ONE - INTRODUCTION
SECTION 2 - SPECIFICATIONS
Rev. 6-1100
Model P33 pH/ORP Analyzer (panel-mount 1/4 DIN)
19
2.2
Analyzer Performance
(Electrical, Analog Outputs)
2.3
Mechanical
1 POINT BUFFER .................. Automatic calibration and buffer recognition
(for pH only)
using one buffer from selected buffer set*.
NOTE:
When using a buffer that is not included in either of the analyzer
buffer sets, use only the “1 POINT SAMPLE” method for calibration.
2 POINT SAMPLE .................. Enter known values of two samples
(for pH only)
(determined by laboratory analysis or
comparison reading) or two pH buffers
1 POINT SAMPLE .................. Enter known value of one sample (determined
(for pH or ORP)
by laboratory analysis or comparison
reading), one pH buffer, or one reference
solution (for ORP measurement)
Analog Outputs .......................... Two isolated 0/4-20 mA outputs; each with
0.004 mA (12-bit) resolution and capability
to drive up to 600 ohm loads
NOTE:
Each output can be assigned to represent the measured pH (or ORP)
or temperature. Parameter values can be entered to define the end-
points at which the minimum and maximum mA output values are
desired (range expand). During calibration, both outputs can be se-
lected to hold their present values, transfer to preset values to
operate control elements by an amount corresponding to those val-
ues, or remain active to respond to the measured value.
Communication: RS-232 ........... Enables configuration and retrieval of measured
data for one analyzer using IBM-compatible
PC and optional GLI software tool kit
HART.............. Enables configuration and retrieval of measured
data for multiple analyzers over a communi-
cation link using appropriate hand-held
terminal or data system with HART software
Memory Backup (non-volatile) .... All user settings are retained indefinitely in
memory (EEPROM)
EMI/RFI Conformance................ Exceeds U.S. and meets European standards
for conducted and radiated emissions and
immunity; certified CE compliant for appli-
cations as specified by EN 50081-2 for
emissions and EN 50082-2 for immunity
Electrical Certifications:
General Purpose (pending) ..... UL, C-UL, FM, and CENELEC
Division 2 (pending) ................ UL, C-UL, and FM: Groups A, B, C, D, F, and G
Zone 2 (pending) .................... CENELEC: Group IIC
Accuracy .................................... 0.1% of span
Stability...................................... 0.05% of span per 24 hours, non-cumulative
Repeatability .............................. 0.1% of span or better
Temperature Drift ....................... Zero and Span: less than 0.03% of span per
°
C
Enclosure................................... Polycarbonate with NEMA 4X front panel;
general purpose; two brackets supplied for
panel mounting
Mounting Configuration .............. Panel mounting
Net Weight ................................. 1.7 lbs. (0.8 kg) approximately
