Hanna Instruments HI 8427 User Manual
Instruction Manual
HI8427 - HI931001
pH/mV Simulators
HI 8427
pH/mV CALIBRATOR
LOW BATTERY
LEAKAGE
pH2
pH4
pH7
pH0
pH10
OFF
1900
mV
-350
350
mV
20
30
mV
HIGH
IMPEDANCE
10
0
50
40
°C
1900
mV
pH12
pH14
These Instruments are in Compliance with the CE Directives
1
Dear Customer,
Thank you for choosing a Hanna Instruments
Product.
Please read this instruction manual carefully
before using the instrument.
This manual will provide you with all the neces-
sary information for the correct use of the
instrument, as well as a more precise idea of
its versatility in a wide range of applications.
These instruments are in compliance with the
directives EN 50081-1 and EN 50082-1.
TABLE OF CONTENTS
Preliminary Examination ........................... 3
PRELIMINARY EXAMINATION
Remove the instrument from the packing
material and examine it carefully to make
sure that no damage has occurred during
shipment. If noticeable damage is found,
immediately notify your Dealer.
Each pH/mV simulator is supplied complete
with:
• HI 7858/1 BNC/BNC Coaxial Cable;
Note: Save all packing material until the in-
strument has been observed to function correctly because all defective
items must be returned to the Dealer
in their original packing.
General Description .................................. 3
Functional Description HI 8427 ................. 4
Functional Description HI 931001 ............. 5
pH Calibration ...........................................6
mV (ORP) Calibration ............................... 8
High Impedance Calibration.................... 10
pH Values at Various Temperature.......... 11
Battery Replacement ............................... 12
Accessories ............................................. 13
Warranty.................................................. 14
CE Declaration of Conformity ................. 15
ISO 9000 Certified
Company since 1992
GENERAL DESCRIPTION
HI 8427 and HI 931001 are portable pH/mV
simulators designed specifically for calibrating pH and mV (ORP) meters. Two calibration ranges are provided:
from 0 to 14 pH and from -1900 to 1900 mV
with HI 8427;
from 0 to 14 pH and from -1000 to 1000 mV
with HI 931001.
HI 931001 provides with pH/mV values at
25°C.
HI 8427 allows the manual temperature compensation and is equipped with a HIGH IMPEDANCE key and LEAKAGE LED to verify
if the connection cable is in perfect condition.
A low battery indicator will be lit when the
simulator battery runs low.
32
FUNCTIONAL DESCRIPTION HI 8427
9
HI 8427
pH/mV CALIBRATOR
FUNCTIONAL DESCRIPTION HI 931001
7
8
3
1
2
5
LOW BATTERY
LEAKAGE
pH2 pH4 pH7 pH10
pH0
OFF
1900
mV
0
50
350
-350
mV
mV
10
20
30
HIGH
40
IMPEDANCE
°C
1900
3
pH12
pH14
mV
4
6
1. Rotary Knob
2. Switch Off Selection
3. pH Outputs Selection
4. mV Outputs Selection
5. Temperature Compensation Knob
6. High Impedance Key
7. Low Battery LED
8. Leakage LED
9. BNC Socket
Range pH 0, 2, 4, 7, 10, 12, 14
Accuracy pH ±0.1
(@20°C/68°F) mV ±5
Temperature Manual from 0 to 50°C
Compensation (32 to 122°F)
High Impedance Test 109 Ω
Battery Type 9V
Life 100 hours of continuous use
Environment 0 to 50°C (32 to 122°F); 95% RH
Dimensions 180x83x40 mm (7.1 x 3.3 x 1.6")
Weight 255 g (9 oz.)
mV -1900, -350, 350, 1900
1. LCD Display
2. ON/OFF Key
3. Range Selection Key
4. pH/mV Coarse Setting Knob
5. pH/mV Fine Setting Knob
6. BNC Socket
Range pH 0.00 to 14.00
mV -1000 to 1000
Resolution pH 0.01
mV 1
Accuracy pH ±0.01
(@20°C/68°F) mV ±1
EMC Typical pH ±0.02
Deviation mV ±2
Temperature All output values simulated
Compensation at 25°C (77°F)
Battery Type 9V
Life 500 hours of continuous use
Environment 0 to 50°C (32 to 122°F); 95% RH
Dimensions 180 x 83 x 40 mm (7.1 x 3.3 x 1.6")
Weight 320 g (11.3 oz.)
54
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