AC and USB Operation:
Included
Automatic Buffer Recognition:
Color-coded: 4.01, 7.00, 10.01 pH;
IUPAC: 1.679, 4.005, 7.000, 10.012, 12.45
DIN: 1.09, 4.65, 9.23
User-defined custom buffer sets
Backlight:
Barometric Pressure Measurement:
For automatic compensation of DO when using an LDO or LBOD probe
BOD5/CBOD resolution:
Available when used with Hach WIMS BOD Manager software
BOD Bottle:
N/A
Calibration:
Demal (1D/ 0.1D/ 0.01D);
Molar (0.1M/ 0.01M/0.001M);
NaCl (0.05%; 25µS/cm; 1000µS/cm; 18mS/cm);
Standard sea water;
User defined
Calibration Intervals/Alerts/Reminder:
Off, selectable from 2 hours to 7 days
Compliance Certifications:
CE
Conductivity measurement:
5 different stability modes
Conductivity measurement: Temperature correction:
None; Linear; NaCl Non-Linear Natural Water.
Conductivity Measurement Range:
0.01 µS/cm to 400 µS/cm
Conductivity resolution:
0.01 µS/cm
Contents:
No
Custom Calibration Standards:
User-defined standard sets
Data Export:
Download via USB connection to PC or flash memory device.
Automatically transfer entire data log or as readings are taken.
Data Memory:
500 results
Data Storage:
GLP/ISO compliant reading data stored with calibration details.
Calibration details and check standard readings documented in data log.
Automatically store in "press to read" mode and interval measurement mode.
Manually store in "continous read" mode.
Digital (intelligent) electrode inputs:
2 channels
Display:
Display readings from one or two probes
Simultaneous readings from two probes (HQ440d only)
pH: pH, mV, temperature
Conductivity: Conductivity, TDS, salinity, resistivity, temperature
LDO: dissolved oxygen, pressure, temperature
LBOD: dissolved oxygen, pressure, temperature
ORP/Redox: mV, temperature
Sodium: Sodium, mV, temperature
Display Lock Function:
Continuous measurement or "press to read" mode available with averaging function for LDO measurement.
Display Type:
240 x 160 pixel LCD with backlight illumination
DO Measurement Range:
0.1 - 20.0 mg/L (ppm) 1 - 200% saturation
DO Resolution:
0.1
DO sensor calibration:
* 100% (water-saturated air (100%) calibration
* 100% with 0 (water-saturated air (100%) calibration with 0 point
* mg/L (calibration with a specified dissolved oxygen concentration (mg/L) solution)
* mg/L with 0 (calibration with a specified dissolved oxygen concentration (mg/L) solution with 0 point)
* Factory (calibration with the default LDO calibration)
Electrode stand:
GLP Features:
Date; Time; Sample ID; Operator ID
Inputs:
13**
Instrument:
Portable
IP Rating:
IP67
ISE Direct Measurement Range:
Electrode specific - see electrode user instructions
ISE Electrode Calibration:
keep
Kit?:
Yes
Languages:
English, French, German, Italian, Spanish, Danish, Dutch, Polish, Portuguese, Turkish, Swedish, Czech, Russian
Measurement method:
Luminescent Dissolved Oxygen
Model:
HQ40D – Multi/2 Channels
mV Measurement at Stable Reading:
Yes
mV Measurement Range:
-1500 - 1500 mV
mV Resolution:
0.1 mV
Needed Cable Length:
1
Operating Error Messages:
Keypad
Operating Humidity:
90 % relative humidity (non-condensing)
Operating Interface:
Predefined ORP standards (including Zobell's solution)
Operating Temperature:
0 - 60 °C (32 - 140 °F)
ORP Electrode Calibration:
Predefined ORP standards (including Zobell's solution)
Parameter:
pH, mV, ISE, DO, Conductivity, TDS, Salinity, Resistivity, ORP, Temp
Parameters:
BOD
NA
NA
PC Data Transfer Software:
HQD Series Meter Data Transfer Utility
pH Buffer Sets:
IUPAC standards
(DIN 19266) or Technical buffer (DIN 19267) or 4-7-10 series or user defined
pH Electrode calibration:
1 - 3 Calibration points
Calibration summary data logged and displayed
pH Measurement Range:
0 - 14 pH
pH Resolution:
Selectable:
0.001/0.01/0.1 pH
Printer:
Yes, Optional
Probes included:
LBOD10101
Probe Type:
LDO10101
Range:
0.05 - 20.00 mg/L
Resolution:
0.1/ 0.01/ 0.001
Salinity Measurement Range:
0 - 42 (ppt) (‰)
Salinity Resolution:
0.01 (ppt) (‰)
Sensor A:
LBOD10101
Sensor B:
NA
Sensor C:
NA
Sensors:
Sensor A: LBOD10101
Sensor B: NA
Sensor C:
Simultaneous measurements:
Yes, 2 channels
TDS Measurement Range:
0.00 mg/L - 50.0 g/L NaCl
TDS Resolution:
0.01 mg/L up - 0.1 g/L upon measuring range
Temperature Compensation:
Automatic Temperature compensation for pH
Automatic Temperature compensation for pH
Temperature Measurement:
°C or °F
Temperature Resolution:
0.1
Type of measurement:
QC Lab
Warranty:
3 years
36 months
Weight:
335 g (0.75 lb) without batteries; 430 g (0.95 lb) with
What's included?:
Includes: meter, LBOD probe with 1 meter cable, meter stand, 4 AA batteries, power cord, power supply, USB/DC adapter for data transfer, quick start guide and user manuals