1. Technical specifications
Measuring ranges
pH –2.00 to 16.00
mV –1500 to 1500
°C –20.0 to 150.0
Measurement error
≤ 0.02 pH, ≤ 1 mV, ≤ 0.5 °C (± 1 digit)
Reproducibility
± 0.01 pH, ± 1 mV, ± 0.1 °C (± 1 digit)
Automatic temperature compensation
With temperature probe Pt 1000 or by keypad
pH calibration options
Default access password: 100
With 1,2 or 3 buffer solutions
Automatic buffer recognition
T echnical (at 25 °C) pH 2.00, 4.01, 7.00, 9.21
and 10.90
Criteria to accept calibration
Slope 85 to 103 %.
Asymmetry potential ≤ 60 mV
Language
English, German, Spanish, French, Italian,
Portuguese
Keypad
LCD, alphanumeric, backlit,
2 lines of 16 characters
Inputs and outputs
Electrode, BNC connector
ATC, Pt 1000 or Pt 100, terminal strip connection
Analogic signal, galvanically isolated
• 4 to 20 mA for measurement (R max.= 500 Ohm)
• 21 mA or the last mA value measured for the
instrument in hold
• 22 mA for the alarm
si627 P_HACH_LANGE_Ed.0510.indd ANG:3
si627 P_HACH_LANGE_Ed.0510.indd ANG:3
Maximum cable length
≤ 25 m
Power supply
230 or 24 VAC ±10 %, 45-65 Hz,
(115 VAC under demand)
Consumption 4 VA
Protection: Class II
Overvoltage category: II
EC Directives
Electrical security according to 2006/95/EC
Electromagnetic compatibility according to
2004/108/EC
Environmental conditions
Working temperature: 0 to 50 °C (32 to 122 °F)
Storage temperature: –20 to 65 °C (–4 to 149 °F)
Relative humidity < 80 % (non condensing)
Max. height 2.000 m. at 230 V; 3.000 at 24 V
Enclosure
si627 P : Noryl, protection IP54.
Flame rating FV-1
Weight
600 g
Dimensions
96 x 96 x 100 mm (3.8 x 3.8 x 3.9 in.)
Warranty
Instruments: 2 years
Specifications are subject to change without
notice.
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20/5/10 10:50:42