Hach-Lange SENSION+ MM374 - Manual (Page 3)

Table of contents
Specifications on page 3 Advanced operation on page 12
General information on page 4 Data logger on page 13
Installation on page 5 Maintenance on page 15
User interface and navigation
on page 8
Troubleshooting on page 17
Startup on page 9 Replacement parts and accessories
on page 18
Standard operation on page 9 Standard solutions on page 19
Specifications
Specifications are subject to change without notice.
Specification Details
Dimensions 35 x 20 x 11 cm (13.78 x 7.87 x 4.33 in.)
Weight 1100 g (2.43 lb)
Meter enclosure IP42
Power requirements
(external) 100–240 V, 0.4 A, 47-63 Hz
Meter protection class Class II
Pollution degree 2
Installation category Category II
Altitude requirements Standard 2000 m (6562 ft) ASL (Above Sea Level)
Storage temperature –15 to +65 °C (5 to +149 °F)
Operating temperature 0 to 40 °C (41 to 104 °F)
Operating humidity < 80% (non-condensing)
Specification Details
Resolution pH: 0.1/0.01/0.001, ORP: 0.1/1 mV, ISE:
programmable, temperature: 0.1 ºC (0.18 ºF), EC:
variable, resistivity: variable, NaCl: variable, TDS:
variable
Measuring error (±
1 digit) pH: ≤ 0.005, ORP: ≤ 0.2 mV, temperature: ≤ 0.2 ºC (≤
0.36 ºF), EC: ≤ 0.5%, resistivity: ≤ 0.5 %, NaCl: ≤
0.5 %, TDS: ≤ 0.5%
Reproducibility (±
1 digit) pH: ± 0.001, ORP: ± 0.1 mV, temperature: ± 0.1 ºC (±
0.18 ºF), EC: ± 0.1%, resistivity: ± 0.1%, NaCl ± 0.1%,
TDS ± 0.1%
Data storage 330 results and last 9 calibrations
Connections 2 Combined or indicator probe: BNC connector (Imp.
>10
12 Ω); 2 Reference electrodes: banana connector;
A.T.C. type Pt 1000: banana or telephonic; 2 magnetic
stirrers: RCA connector
Conductivity probe with built-in Pt1000 sensor (or NTC
10 kΩ probe): telephonic connector
RS232C for printer or PC: telephonic connector;
external PC keyboard: mini DIN connector
Temperature correction Channel 1 pH: Pt 1000 temperature probe (A.T.C.),
NTC 10 kΩ probe, manual, Channel 2 temperature,
isopotential pH programmable, standard value 7.00,
CE: Pt 1000 temperature probe (A.T.C.), linear
function, TC=0.00 to 9.99%/Temperature, TRef: 20°C
(68 °F) or 25°C (77 °F), non-linear function for natural
waters (UNE EN 2788) Channel 2 pH: Pt
1000 temperature probe (A.T.C.), manual, NTC 10KΩ
probe, isopotential pH programmable, standard value
7.00
Measurement display
lock Continuous measurement, by stability, by time
Display Liquid crystal, backlit, 128 x 64 dots
Keyboard PET with protective treatment
Certification CE
English 3