Monroe Electronics Electrostatic Fieldmeter - Static Monitor - model 177A - Manual (Page 12)

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Section 6
Using 1036E and 1036F Sensors
General
Models 1036E and 1036F electrostatic fieldmeter probes are electrically identical and
interchangeable. The major differences are physical. Model 1036F is a small (1.75” dia. x 1.25” H),
lightweight version for general-purpose applications, or where available space is a problem. Model
1036E, for most industrial applications, is a 1036F probe built into a standard Crouse-Hinds ½”-FS1
electrical box with a stainless steel cover.
Both probes utilize the same vibrating capacitor modulator, and both have built-in provisions for
purging with filtered air to prevent contamination and long-term drift. Inert gas may also be used for
purging in hazardous areas where the probe will be used in an inert gas atmosphere. Purge gas flow
in the Model 1036F exits through the sensitive aperture only. Gas flow in Model 1036E is directed
across the face of the probe as well as through the sensitive aperture. Both probes are designed to
be used with Monroe Electronics Model 177A Static Monitor 4 Channel Electrostatic
Fieldmeter/Alarm System.
Static electricity is a natural occurrence resulting from common converting, laminating, and printing
applications. At times static electricity is little more than an annoyance. However, in applications
where significant electrostatic charges accumulate, the effects can be very serious. Typical probe
applications include static level safety monitoring in explosive environments and static level quality
monitoring in sensitive machine areas.
1036E, 1036F Fieldmeter Probe IS / I / 1 / CD / T5 Ta = 80
0
C – 1036/10/A
1036E, 1036F Fieldmeter Probe IS / I / 1 / CD / T5 Ta = 100
0
C – 1036/10/A
1. Parts of the Models 1036E and 1036EH Fieldmeter probe enclosures are constructed
from plastic. To prevent the risk of electrostatic sparking the plastic surface shall only be
cleaned with a damp cloth.
2. The Models 1036E, 1036EH, 1036F & 1036FH Fieldmeter Probe enclosure contains
aluminum and is considered to present potential risk if ignition by impact or friction.
Care must be taken into account during installation and use to prevent impact or friction.
Figure 10: Model 1036E Fieldmeter Probe Figure 11: Model 1036F Fieldmeter Probe
Installation
Sensitivity:
Full-scale sensitivity for any properly standardized and calibrated probe/instrument combination is
dependent upon the gradient cap (containing the aperture) on each probe. Full-scale sensitivity for
any given system or channel (in the case of a multi-channel system such as the Model 177A) can be
determined by inspecting the gradient cap on the probe. Each gradient cap is stamped on its face
with a number, which represents a different size aperture. This number relates to the sensitivity of
the probe as shown in the table below. Probes are standardized at the factory in a uniform electric
field between two relatively large metal plates (see Figure 12).
Once standardized in this manner,
they may be interchanged at will.