Logging Sample Information On Models 920 And 930 From A Hach Sampler - Hach 910 Instrument Manual

Section 2
Wire
Pin Letter
Color
A White Not used.
B
Blue Provides the ground line that is used in conjunction with the other signals on this connector.
Ground
Used in conjunction with Pin B (ground) to tell a sampler that a pre-determined amount of flow has
C
accumulated.
Flow Pulse Yellow
Output
Rating: +8 V dc. Output current is 100 mA dc (max.) with a duration of 500 ms.
Used to "wake up" a wastewater sampler when a level and/or rainfall set-point condition is met so
D
that it can begin sampling. Used in conjunction with Pin B (ground), this line is normally allowed to
Sampler Black
float and is switched to ground (by transistor) once the set-point conditions are met.
Start
Rating: +24 V dc (max.)
This signal is received from a Hach wastewater sampler. It confirms that a sample has been
E
Red collected. The time and date of each water sample appears on the data printout when downloaded
Event Input
using a Data Transfer Unit or Hach PC software. Rating: +12 V dc (max.) minimum 3 sec. pulse.
This signal is received from a Hach wastewater sampler. It is used in conjunction with the "Event
Input" signal described above. It tells the flow meter which bottle was used and when a sample was
taken. This information will appear in the data printout (see "Sample Times and Dates") when
downloaded using a Data Transfer Unit or Hach Support Software.
Bottle Number signal description
If the Program Complete Output (pin F of the aux. connector) is disabled on the sampler, then it is
used to transmit the bottle number to the connected device.
Time A = 200 msec
F
Time B = 100 msec (50 ms HI 50 ms LO)
Bottle
Green
Note: If a sample attempt fails, the first pulse width 'B' is 150 msec HI and 50 msec LO.
Number
Input
Note: If Sample Distribution is programmed for multiple bottles per sample mode, only the first
Cable Required
Multi-Purpose Half Cable Assembly (Cat. No. 941): 3 m (10') long, 6-pin connector on one end,
tinned wire leads on the other end. For use with non-Hach samplers.
or
Multi-Purpose Full Cable Assembly (Cat. No. 940): 3 m (10') long, 6-pin connector on both ends.
Custom sizes: 7.6 m lengths (25 ft.) and custom sizes are also available.

2.5.2 Logging Sample Information on Models 920 and 930 from a Hach Sampler

Page 22
Sampler Receptacle (Models 920 and 930 Only)
Table 3Sampler Receptacle Pin Description
bottle number of the set is transmitted via pin-F.
To log sample information in Models 920 or 930 from Hach samplers:
1. Connect the appropriate cable (Cat. No. 940 or 540) to the "Sampler"
receptacle on the flow meter and the "Auxiliary" receptacle on the
sampler.
2. Program the sampler for Special Output/Sample Output. See the
appropriate sampler manual for details.
Description
SoftwareCommunications.fm