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
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:
Yes
Conductivity measurement: Temperature correction:
Temperature correction
Conductivity Measurement Range:
0.01 µS/cm to 200 mS/cm
Conductivity resolution:
0.01 µS/cm with 2 digits
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:
Inputs:
2
Instrument:
Portable
Interface Languages:
13
IP Rating:
IP67
ISE Direct Measurement Range:
Yes
ISE Electrode Calibration:
Electrode specific - see electrode user instructions
Kit?:
Yes
Languages:
English, French, German, Italian, Spanish, Danish, Dutch, Polish, Portuguese, Turkish, Swedish, Czech, Russian
Measurement method:
Probe specific programmed method settings
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:
Text messages displayed
Operating Humidity:
90 % relative humidity (non-condensing)
Operating Interface:
Keypad
Operating Temperature:
0 - 60 °C (32 - 140 °F)
ORP Electrode Calibration:
Predefined ORP standards (including Zobell's solution)
Outputs:
USB to PC / flash memory device
Parameter:
pH, mV, ISE, DO, Conductivity, TDS, Salinity, Resistivity, ORP, Temp
Parameters:
pH
Conductivity
NA
PC Data Transfer Software:
Included
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:
Optional accessory
Probes included:
PHC30101, CDC40101
Probe Type:
Standard
Salinity Measurement Range:
0 - 42 (ppt) (‰)
Salinity Resolution:
0.01 (ppt) (‰)
Sensor A:
PHC30101 (1 m)
Sensor B:
CDC40101 (1 m)
Sensor C:
NA
Sensors:
Sensor A: PHC30101, CDC40101
Sensor B: CDC40101
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 Accuracy:
∓ 0.3 °C
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:
36 months
Weight:
335 g (0.75 lb) without batteries; 430 g (0.95 lb) with
What's included?:
Meter package includes HQ40D Portable Meter; 4 AA batteries; Power adapter, USB/DC power adapter for data transfer; quick-start guide and user manual. HQD Meter Stand; Probe stand; pH Electrode Storage Solution, 500 mL; Sodium Chloride Standard Solution, 491 mg/L NaCl (1000 µS/cm), 100 mL; Buffer Solution, pH 4.01/7.00/10.01 (NIST), color-coded red, 500 mL
Intellical PHC301 Laboratory pH electrode with storage soaker bottle, 1 m cable, 28-mL bottle reference electrolyte filling solution (3 M KCl solution saturated with AgCl), Test certificate, and Basic User Manual.
Intellical CDC401 Laboratory Conductivity Cell, 1 m cable, Test certificate, and Basic User Manual.