Synrad 48 Series - Table 1-2 Dew Point Temperatures

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Synrad
Series 48Series 48
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Series 48 operator’s manual
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The greatest risk of condensation damage occurs when water-cooled lasers are run in a high heat/high
humidity environment and the chiller’s coolant temperature is colder than the dew point of the sur-
rounding air or when the system is shut down, but coolant continues to flow through the laser for
extended periods of time.
The chiller’s temperature setpoint must always be set
above the dew point temperature. In cases where
this is not possible within the specified coolant temperature range of 18 °C to 22 °C (64 °F to 72 °F),
then the following steps MUST be taken to reduce the risk of condensation damage.
■ Stop coolant flow when the laser is shut down.
■ Increase coolant flow by an additional 1.0 GPM. Do not exceed a coolant pressure of 60 PSI.
■ Air-condition the room or the enclosure containing the laser.
■ Install a dehumidifier to reduce the humidity of the enclosure containing the laser.
Table 1-2 provides dew point temperatures for a range of air temperature and relative humidity values.
Remember that the laser’s coolant temperature must be set above the dew point temperatures shown in
the chart, but should not exceed 22 °C (72 °F).
Table 1-2 Dew point temperatures
Dew Point TDew Point T
Dew Point TDew Point T
Dew Point T
emperaturemperatur
emperaturemperatur
emperatur
e Chart °F (°C)e Chart °F (°C)
e Chart °F (°C)e Chart °F (°C)
e Chart °F (°C)
Relative Humidity (%)
20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95
Air Temp
°F (°C)
60 (16) ———32363941444648505254555759
(0) (2) (4) (5) (7) (8) (9) (10) (11) (12) (13) (14) (15)
65 (18) ——3337404346485153555759606264
(1) (3) (4) (6) (8) (9) (11) (12) (13) (14) (15) (16) (17) (18)
70 (21) —333741454851535658606264656769
(1) (3) (5) (7) (9) (11) (12) (13) (14) (16) (17) (18) (18) (19) (21)
75 (24) —374246495255586062656768707273
(3) (6) (8) (9) (11) (13) (14) (16) (17) (18) (19) (20) (21) (22) (23)
80 (27) 35 41 46 50 54 57 60 62 65 67 69 71 73 75 77 78
(2) (5) (8) (10) (12) (14) (16) (17) (18) (19) (21) (22) (23) (24) (25) (26)
85 (29) 40 45 50 54 58 61 64 67 70 72 74 76 78 80 82 83
(4) (7) (10) (12) (14) (16) (18) (19) (21) (22) (23) (24) (26) (27) (28) (28)
90 (32) 44 50 54 59 62 66 69 72 74 77 79 81 83 85 87 88
(7) (10) (12) (15) (17) (19) (21) (22) (23) (25) (26) (27) (28) (29) (31) (31)
95 (35) 48 54 59 63 67 70 73 76 79 81 84 86 88 90 92 93
(9) (12) (15) (17) (19) (21) (23) (24) (26) (27) (29) (30) (31) (32) (33) (34)
100 (38) 52 58 63 68 71 75 78 81 84 86 88 91 93 95 97 98
(11) (14) (17) (20) (22) (24) (26) (27) (29) (30) (31) (33) (34) (35) (36) (37)