gohastings.com Hastings Entertainment Oxygen Equipment HFM-I-401 Manual De Usuario

 

 

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In order to maintain the integrity of the Electrostatic Discharge 
immunity both parts of the remote mounted version of the 

HFM-I-400 instrument must be screwed to a well grounded 
structure. The ferrite that is shipped with the instrument must 

be installed on the cable next to the electronics enclosure. 

The electronics enclosure can be separated and 
relocated up to 30 feet away from the flow 

meter base. This requires a cable which is 
supplied with the instrument if ordered as a 

cable mounted unit. Alternatively, a 2, 5, or 10 
meter cable can be purchased separately.  See 

section 4.2 for ordering information and part 
numbers. 
 
When remote mounting the electronics 
enclosure, the support bracket can remain 

attached to either the flow meter base or the 
electronics. To separate the electronics 

enclosure from the support bracket, remove 
the two screws located on the back of the 
support bracket. To separate the flow meter 

base from the support bracket, remove the four 
screws that mount the bracket to the top of the 

flow meter base. Unscrew the electrical 
connector between electronics enclosure and the flow 

meter base. Remove the electronics enclosure from the 
flow meter base. Connect the female end of the remote 

electronics cable to the flow meter base and the male end 
to the electronics enclosure. The electronics enclosure can 

be mounted remotely by using the two threaded holes in 
the enclosure.  The size and spacing of these two holes are 

specified on the outline drawing in Appendix 3 (Section 
6.3).  These holes may be used by inserting fasteners from 

behind through a new mounting bracket or they may be 
accessed from the front side by temporarily removing the 

enclosure panel. This enables mounting the enclosure to a 
wall or other solid structure.  Alternatively, if the 

instrument was originally configured as a bracket mounted 
unit the bracket may be directly mounted to a support 

structure. The bracket mounting holes locations are the 
same as those for the flow meter base mounting. (See the 

outline drawing in Appendix 3, Section 6.3.) 

There are two electrical connectors on the Hastings 400-I 
Series flow meters—an analog terminal strip (located within 

the electronics enclosure) and a digital connector. The 
analog connector provides for the power supply to the 

meter along with analog signals and functions. As such, its 
use is required for operation. The digital connector is used 

for communications in either of RS232, RS485, or Ethernet 
mode depending on the instrument’s configuration. The digital connector does not have to be 

used if the meter is operated as an analog-only instrument.   

1

- Power Supply

2

+ Power Supply

3

-  Flow  Output

4

+  Flow  Output

5

+  Auxiliary  Input

6

-  Auxiliary  Input

7

No Connection

8

Digital Common

9

Remote Zero

10

Alarm 1

11

Alarm 2

12

Alarm Common