Ov1. Physical Description - Campbell CR510 Operator's Manual

The CR510 is a fully programmable datalogger/controller with non-volatile memory and a battery backed
clock in a small, rugged module. The combination of reliability, versatility, and telecommunications
support make it a favorite choice for networks and single logger applications.
Campbell Scientific Inc. provides four aids to operating the CR510:
1.
2.
3.
4.
This Overview introduces the concepts required to take advantage of the CR510's capabilities. Hands-
on programming examples start in Section OV5. Working with a CR510 will help the learning process,
so don't just read the examples, do them. If you want to start this minute, go ahead and try the
examples, then come back and read the rest of the Overview.
The sections of the Operator's Manual which should be read to complete a basic understanding of the
CR510 operation are the Programming Sections 1-3, the portions of the data retrieval Sections 4 and 5
appropriate to the method(s) you are using (see OV6), and Section 14 which covers installation and
maintenance.
Section 6 covers details of serial communications. Sections 7 and 8 contain programming examples.
Sections 9-12 have detailed descriptions of each programming instruction, and Section 13 goes into
detail on the CR510 measurement procedures.
The Prompt Sheet is an abbreviated description of the programming instructions. Once familiar with the
CR510, it is possible to program it using only the Prompt Sheet as a reference, consulting the manual if
further detail is needed.
Short Cut is an easy-to-use DOS-based software program. It features point-and-click menus to guide
you through the process of creating simple CR510 programs. In addition to the downloadable program
file, Short Cut creates a table to simplify wiring sensors to the CR510.
Read the Selected Operating Details and Cautionary Notes at the front of the Manual before using the
CR510.

OV1. PHYSICAL DESCRIPTION

The CR510 was designed to provide a rugged
datalogger with a low per unit cost. Some of its
distinguishing physical features are:
•
The CR510 does not have an integral
keyboard/display. The user accesses the
CR510 with the portable CR10KD Keyboard
Display or with a computer or terminal
(Section OV2).
•
The power supply is external to the CR510.
This gives the user a wide range of options
(Section 14) for powering the CR510.
CR510 DATALOGGER OVERVIEW
This Overview
The CR510 Operator's Manual
The CR510 Prompt Sheet
Short Cut
OV1.1 ANALOG INPUTS
The terminals labeled 1H to 4L are analog
inputs. These numbers refer to the high and
low inputs to the differential channels 1 and 2.
In a differential measurement, the voltage on
the H input is measured with respect to the
voltage on the L input. When making single-
ended measurements, either the H or L input
may be used as an independent channel to
measure voltage with respect to the CR510
analog ground (AG). The single-ended
channels are numbered sequentially starting
with 1H; e.g., the H and L sides of differential
channel 1 are single-ended channels 1 and 2;
the H and L sides of differential channel 2 are
single-ended channels 3 and 4, etc.
OV-1