Owner's manual

Automatic Store Total
The monitor is equipped with a store total feature that works automatically, saving the current total to flash memory. The
frequency of saves depends on the power supply option chosen.
Battery Powered: Once per hour and just before a low battery condition turns the unit off.
Loop Powered: Once every ten minutes.
BATTERY REPLACEMENT
Battery powered monitors use a single 1.5V, “D” size, alkaline battery. When replacement is necessary, use a clean fresh
battery to ensure continued trouble-free operation. It is recommended that the total be saved to memory before the battery
is removed.
Unscrew the two captive screws on the front panel to gain access to the battery. Replace the battery, being sure to observe
the proper polarity, and then refasten the front panel.
ADDITIONAL INPUT OPTIONS
The B2800 flow monitor is capable of receiving magnetic pickup input (small signal sine wave) or a contact closure input
(pulse). Since most Blancett turbine flow meters utilize a magnetic pickup, the B2800 Flow monitor is shipped configured
for magnetic pickup input. To change to a contact closure input, remove JP2 from the top two pins and jumper them to the
bottom two pins. See Figure 5.
+ Pulse In
Magnetic Pickup
10K
30V DC (Max)
20 mS Pulse
R
MAX
=
(Loop Supply Voltage - 5)
0.02
1 2 3 4 5 6
+
-
+
-
+
-
- Pulse In
10…30V DC
- Common
Pulse Input Card
Analog Input Card - 4-20 mA
Figure 4: Wiring diagram
Flow Monitor, B2800 Flow Monitor – Advanced
Page 12 November 2013