How to Operate the Metrotech 850 Utility Line Locator
Lead Insert direct connect cable or Battery charge
connection inductive clamp. BE SURE POWER Conductor
IS OFF. Bad Power knob arrow
Power Pull knob up to turn unit on. Battery Better indicator
knob % will display first. Then power light Full charge
will remain on.
Charge Plug power in here overnight.
jack Recharge whenever below 25%.
Conductor Align this arrow with your targeted
arrow conductor for inductive mode.
Power Start at low, switch to high if locate
level impossible at low power.
Battery Use the chart to the right to
charge determine if the battery has sufficient
If less than 25%, recharge
immediately. Power level
Charge jack knob
If >50%, you should have enough Lead (shown closed)
charge for the day’s work. connection 850 Transmitter
Left/Right Battery strength Mode Selector 850 Receiver
Turn off when not in use. To check and
selector Check battery (see right). replace batteries
Heaphone Turn on to perform locate 1. Turn mode
jack procedure selector to
Use when required during battery check.
Do not use the headphone
jack. You must be aware of 2. If needle is to
nearby changing safety the left of good
Depth strength Speaker issues such as traffic. The range, replace
button speaker is sufficient. batteries. (Four
To perform locate…
1. After performing required checks on unit 3. Start 10' to 15' from the transmitter. under access
as per M-60.2, and with power turned Sweep left to right across where you here screw
off, insert appropriate attachment into expect to find the target conductor. Use
transmitter. the left/right indicator to find the
2. If locating conductively, connect the red
lead to the locating wire or other 4. Follow target sweeping left to right
conductive attachment, and connect the always noting strength of signal. A
black lead to the ground stake. If sudden drop in signal accompanied by a
inductively, connect the coupler to the left/right movement of the bar indicate a
conductor or align the transmitter’s turn, tee or end of target conductor.
conductor arrow with the suspected
5. Mark as you go, per marking standards
location of the facility.
OQ Subtask # 05-01 Rev: Nov 13, 2008