YOKOGAWA PH71, Руководство пользователя

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IM 12B03D01-01E
1-2
1. Outline
1.2 Specifications
Measuring range: pH: 0 to 14 pH*
1
Temperature: 0 to 100
8
C*
2
Resolution: pH: 0.01 pH
Temperature: 0.1
8
C
Repeatability (without sensor): pH:
6
0.01 pH
6
1 digit
Accuracy (Temperature):
6
0.7
8
C (0 to 70
8
C)
6
1
8
C (above 70
8
C)
Temperature compensation (glass electrode emf — temperature characteristics):
Automatic compensation (or manual compensation*
1
)
Solution temperature: 0 to 80
8
C (or 0 to 100
8
C*
3
) (0 to 50
8
C when a KCl replenish-
free type sensor and its sensor cable are immersed in water)
Solution conductivity: 50
m
S/cm or more
Ambient temperature: 0 to 50
8
C
Construction: Protection class IP67 (IEC 60529)
Power source: 2x AA batteries (LR6)
Auto power off function (time configurable: 1 to 120 minutes)
Battery life: Approximately 600 hours*
4
of continuous use (battery type and
operating condition dependent)
Dimensions: Approximately 150(H) x 61(W) x 42(D) mm (not including
connector part)
Weight: Approximately 220 g (including batteries)
EMC Compliance:
EMI (Emission):
EN 61326-1 Class B
Test Item
Electromagnetic radiation disturbance
Frequency Range
30 to 1000 MHz
Basic Standard
CISPR 16-1 and 16-2
T0101.EPS
EMS (Immunity): EN 61326-1 Table 2 (For ise in industrial locations)
Test Item No.
1
Electrostatic
discharge
Test Specification Basic Standard
IEC 61000-4-2
Performance
Criteria*
* A: Normal performance within the specification limits:
±
20% of the measured value.
B: Temporary degration or less of function or performance which is self-recoverable.
** Display value may be affected by strong electromagnetic field.
A
4 kV (contact)
8 kV (air)
A
2.0 to 4.0 GHz,
3 V/m (unmodulated)
80% AM (1 kHz)
2
RF amplitude
modulated
electromagnetic field
IEC 61000-4-3
B**
80 to 1000 MHz,
10 V/m (unmodulated)
80% AM (1 kHz)
A
1.4 to 2.0 GHz,
10 V/m (unmodulated)
80% AM (1 kHz)
T0102.EPS
*1: Display range is from -2 to 10 pH.
*2: Display range is from-10 to 120
8
C.
*3: When a needle type or test tube size pH sensor is used.
*4: When alkaline batteries are used.